901. During gene therapy, the possible ways through which the genes can be introduced into the cell are:
A. Micro injection
B. Some viruses
C. Both “A” and “B” ✅
D. Erythrocytes
A. Micro injection
B. Some viruses
C. Both “A” and “B” ✅
D. Erythrocytes
902. DNA finger printing helps in:
A. Identifying illegal immigrants
B. Detecting the real parent of child
C. Detecting the suspect involved in crime
D. All of these ✅
A. Identifying illegal immigrants
B. Detecting the real parent of child
C. Detecting the suspect involved in crime
D. All of these ✅
903. In one type of gene therapy, functional genes are introduced into the sperm or the egg. This is called:
A. Somatic cell gene therapy
B. Germline gene therapy ✅
C. Vegetative cell gene therapy
D. Gametic gene therapy
A. Somatic cell gene therapy
B. Germline gene therapy ✅
C. Vegetative cell gene therapy
D. Gametic gene therapy
904. Glucose is added to the tissue culture media as:
A. Growth regulator
B. Carbon source ✅
C. Solidifying agent
D. An antibiotic
A. Growth regulator
B. Carbon source ✅
C. Solidifying agent
D. An antibiotic
905. Explant is:
A. Any cut part of the plant used in tissue culture ✅
B. A plant extract used in tissue culture
C. A source of growth regulators added to media
D. Solidifying agent
A. Any cut part of the plant used in tissue culture ✅
B. A plant extract used in tissue culture
C. A source of growth regulators added to media
D. Solidifying agent
906. The work ‘Hybridization’ in DNA finger printing means:
A. Pairing b/w nucleotides of DNA sample with probe ✅
B. Pairing b/w the nucleotides of DNA and mRNA
C. Pairing b/w the nucleotides of probe with mRNA
D. Pairing between the nucleosides with mRNA
A. Pairing b/w nucleotides of DNA sample with probe ✅
B. Pairing b/w the nucleotides of DNA and mRNA
C. Pairing b/w the nucleotides of probe with mRNA
D. Pairing between the nucleosides with mRNA
907. Dolly, the first animal produced through cloning is:
A. Camel
B. Rat
C. Cow
D. Sheep ✅
A. Camel
B. Rat
C. Cow
D. Sheep ✅
908. Fearing that the child to be born may have a genetic disorder, a couple goes to a doctor. Which one of the techniques will be suggested by the doctor to cure genetic disorder?
A. Hybridoma technology
B. Gene therapy ✅
C. ELISA
D. DNA finger printing
A. Hybridoma technology
B. Gene therapy ✅
C. ELISA
D. DNA finger printing
909. The genes introduced through somatic cell gene therapy are:
A. Heritable
B. Non-heritable ✅
C. Partially heritable
D. None of these
A. Heritable
B. Non-heritable ✅
C. Partially heritable
D. None of these
910. In biotechnology, mass culturing of cells / microbes can be achieved by using:
A. Test tube culture
B. Bioreactor ✅
C. Autoclave
D. Electrophoresis
A. Test tube culture
B. Bioreactor ✅
C. Autoclave
D. Electrophoresis
911. A bioreactor known for mass culturing of cells / microbes must have:
A. Agitation for mixing of cells and medium
B. Sterile conditions
C. Regulation of temperature, aeration, etc.
D. All of these ✅
A. Agitation for mixing of cells and medium
B. Sterile conditions
C. Regulation of temperature, aeration, etc.
D. All of these ✅
912. In vitro culture of plant parts need:
A. Controlled environmental condition
B. Aseptic condition
C. Maintenance of pH
D. All of these ✅
A. Controlled environmental condition
B. Aseptic condition
C. Maintenance of pH
D. All of these ✅
913. Bioreactors are used for:
A. Large scale production of desired substances by using cells / microbes ✅
B. Kill bacteria
C. To store viruses
D. To get chemicals
A. Large scale production of desired substances by using cells / microbes ✅
B. Kill bacteria
C. To store viruses
D. To get chemicals
914. The basic components of tissue culture media are:
A. Micro and macro nutrients, glucose
B. Micro and macro nutrients, vitamins, agar
C. Micro and macro nutrients and growth regulators, glucose
D. Micro and macro nutrients, growth regulators, agar, vitamins, glucose ✅
A. Micro and macro nutrients, glucose
B. Micro and macro nutrients, vitamins, agar
C. Micro and macro nutrients and growth regulators, glucose
D. Micro and macro nutrients, growth regulators, agar, vitamins, glucose ✅
915. Agar is added to tissue culture media as:
A. Carbon source
B. A growth regulator
C. Nitrogen source
D. Solidifying agent ✅
A. Carbon source
B. A growth regulator
C. Nitrogen source
D. Solidifying agent ✅
916. Stem cells found in umbilical cord blood is:
A. Totipotent
B. Pluripotent
C. Omnipotent
D. Multipotent ✅
A. Totipotent
B. Pluripotent
C. Omnipotent
D. Multipotent ✅
917. Which one of the following statements about plant tissue culture is correct?
A. The culturing of root is not possible
B. Any cell that is totipotent can be cultured ✅
C. The pH of the media need not be maintained
D. Fruit juices are added to media as carbon source
A. The culturing of root is not possible
B. Any cell that is totipotent can be cultured ✅
C. The pH of the media need not be maintained
D. Fruit juices are added to media as carbon source
918. With reference to biotechnology, microinjection is a method of:
A. Injecting a solution of DNA into nucleus of a cell ✅
B. Injecting nutrients into a cell culture media
C. Injecting microbes into a cell culture media
D. Injecting medicine to human beings
A. Injecting a solution of DNA into nucleus of a cell ✅
B. Injecting nutrients into a cell culture media
C. Injecting microbes into a cell culture media
D. Injecting medicine to human beings
919. Agar, used in plant tissue culture is extracted from:
A. A fungus
B. A bacterium
C. An alga ✅
D. A virus
A. A fungus
B. A bacterium
C. An alga ✅
D. A virus
920. Totipotency refers to:
A. The ability of a plant cell to arrest growth of a plant
B. The ability of a plant cell to develop disease
C. The ability of a plant cell to develop into a complete plant ✅
D. The ability of a plant cell to develop into a callus
A. The ability of a plant cell to arrest growth of a plant
B. The ability of a plant cell to develop disease
C. The ability of a plant cell to develop into a complete plant ✅
D. The ability of a plant cell to develop into a callus
921. The main aim of human genome project is:
A. To identify and sequence of all the genes present in the human body ✅
B. To introduce new genes to human beings
C. To remove disease causing genes from humans
D. To improve techniques of finger printing
A. To identify and sequence of all the genes present in the human body ✅
B. To introduce new genes to human beings
C. To remove disease causing genes from humans
D. To improve techniques of finger printing
922. Bt cotton is a:
A. A cotton variety obtained by crossing two different cotton plants
B. A cotton variety brought from South America
C. An insecticide sprayed on cotton plant
D. A transgenic cotton variety ✅
A. A cotton variety obtained by crossing two different cotton plants
B. A cotton variety brought from South America
C. An insecticide sprayed on cotton plant
D. A transgenic cotton variety ✅
923. Somatic embryos are:
A. Embryos developed from zygote after fertilization
B. Embryos developed from egg without fertilization
C. Embryo like structure settled from cells of callus ✅
D. Embryo developed by ovules
A. Embryos developed from zygote after fertilization
B. Embryos developed from egg without fertilization
C. Embryo like structure settled from cells of callus ✅
D. Embryo developed by ovules
924. An amorphous mass of loosely arranged thin walled parenchyma cells developing from explant is called:
A. Thallus
B. Callus ✅
C. Callose
D. Embryoids
A. Thallus
B. Callus ✅
C. Callose
D. Embryoids
925. The name “Golden rice” is given to a rice variety because:
A. It contains traces of gold
B. It is obtained from areas where gold mining is done
C. The seeds are golden yellow in color because of the presence of β–carotene ✅
D. It is made of gold
A. It contains traces of gold
B. It is obtained from areas where gold mining is done
C. The seeds are golden yellow in color because of the presence of β–carotene ✅
D. It is made of gold
926. Fruit juice or coconut milk is added to plant tissue culture media because:
A. It is a source of micronutrients
B. It is a source of macronutrients
C. It is a source of growth regulators ✅
D. It helps in maintaining pH of the media
A. It is a source of micronutrients
B. It is a source of macronutrients
C. It is a source of growth regulators ✅
D. It helps in maintaining pH of the media
927. pUC 18 is a:
A. Phage used as a vector
B. Bacteria used for transformation
C. Restriction endonuclease
D. A plasmid ✅
A. Phage used as a vector
B. Bacteria used for transformation
C. Restriction endonuclease
D. A plasmid ✅
928. The process of introduction of foreign DNA into an animal cells is called:
A. Transversion
B. Conversion
C. Inversion
D. Transfection ✅
A. Transversion
B. Conversion
C. Inversion
D. Transfection ✅
929. The cloned sheep “Dolly” had a genotype which is:
A. Haploid and identical to that of mother’s egg cell
B. Diploid & alike to that of mother’s somatic cells ✅
C. Diploid with the haploid set of chromosomes from the father and other from the mother
D. Diploid & alike to that of the donor’s somatic cells
A. Haploid and identical to that of mother’s egg cell
B. Diploid & alike to that of mother’s somatic cells ✅
C. Diploid with the haploid set of chromosomes from the father and other from the mother
D. Diploid & alike to that of the donor’s somatic cells
930. Pluripotent cells derived from the early pre implantation of an embryo in mice are called:
A. Stem cells ✅
B. Organ culture
C. Somatic cell hybridization
D. Hybridoma
A. Stem cells ✅
B. Organ culture
C. Somatic cell hybridization
D. Hybridoma
931. A segment of DNA that reads from the same forward and backward is called:
A. Palindromic DNA ✅
B. Complementary DNA
C. Plasmid DNA
D. Copy DNA
A. Palindromic DNA ✅
B. Complementary DNA
C. Plasmid DNA
D. Copy DNA
932. The chemical nature of ‘humulin’ produced by recombinant DNA technology is:
A. Lipid
B. Protein ✅
C. Monosaccharide
D. Vitamin
A. Lipid
B. Protein ✅
C. Monosaccharide
D. Vitamin
933. Which of the following is associated with DNA finger printing?
A. Hybridoma
B. Site specific mutagenesis
C. Shotgun cloning
D. RFLP ✅
A. Hybridoma
B. Site specific mutagenesis
C. Shotgun cloning
D. RFLP ✅
934. Which technique would most likely to be used to produce a large number of genetically identical offspring?
A. Cloning and in vitro culture ✅
B. Polymerase chain reaction
C. Chromatography
D. Electrophoresis
A. Cloning and in vitro culture ✅
B. Polymerase chain reaction
C. Chromatography
D. Electrophoresis
935. The restriction endonucleases are called so because:
A. They have a very restrictive or site specific endonuclease activity ✅
B. They cut DNA at a few restricted sites
C. They restrict the entry of foreign DNA into the cell by cleaving the DNA due to endonuclease activity
D. Their distribution is restricted to only some bacterial cells
A. They have a very restrictive or site specific endonuclease activity ✅
B. They cut DNA at a few restricted sites
C. They restrict the entry of foreign DNA into the cell by cleaving the DNA due to endonuclease activity
D. Their distribution is restricted to only some bacterial cells
936. A hybridoma cell:
A. Produces different types of antibodies against different types of antigens
B. Produces only specific antibodies only against a specific antigen ✅
C. Produces different types of antibodies but only one type of antigen
D. None of the above
A. Produces different types of antibodies against different types of antigens
B. Produces only specific antibodies only against a specific antigen ✅
C. Produces different types of antibodies but only one type of antigen
D. None of the above
937. A cancerous / myeloma cell in hybridoma helps in:
A. Continuous growth of hybridoma
B. Production of antibodies
C. Both “A” and “B” ✅
D. Neither “A” nor “B”
A. Continuous growth of hybridoma
B. Production of antibodies
C. Both “A” and “B” ✅
D. Neither “A” nor “B”
938. Which one of the following organism is used for the large scale production of recombinant insulin?
A. Plasmodium
B. Agrobacterium
C. Rhizobium
D. E. coli ✅
A. Plasmodium
B. Agrobacterium
C. Rhizobium
D. E. coli ✅
939. The unique feature of monoclonal antibody is that:
A. It is specific to a single antigenic determinant of a single antigen ✅
B. It is non-specific
C. It is specific to a few antigenic determinants
D. Restricted growth
A. It is specific to a single antigenic determinant of a single antigen ✅
B. It is non-specific
C. It is specific to a few antigenic determinants
D. Restricted growth
940. ‘Thermal Cycler’ is used in the reaction:
A. Enzyme linked immune-sorbant assay
B. Ligation reaction
C. Polymerase chain reaction ✅
D. Immobilization reaction
A. Enzyme linked immune-sorbant assay
B. Ligation reaction
C. Polymerase chain reaction ✅
D. Immobilization reaction
941. Construction of a recombinant DNA involves:
A. Cleaving DNA with restriction endonuclease and joining with ligase ✅
B. Cleaving DNA with ligase and joining with endonuclease
C. Cleaving and joining DNA with restriction endonuclease
D. Cleaving DNA with restriction endonuclease and joining with polymerase
A. Cleaving DNA with restriction endonuclease and joining with ligase ✅
B. Cleaving DNA with ligase and joining with endonuclease
C. Cleaving and joining DNA with restriction endonuclease
D. Cleaving DNA with restriction endonuclease and joining with polymerase
942. ECOR1 is a:
A. DNA ligase enzyme
B. Restriction endonuclease ✅
C. A vector used for insulin synthesis
D. A plasmid used as a vector
A. DNA ligase enzyme
B. Restriction endonuclease ✅
C. A vector used for insulin synthesis
D. A plasmid used as a vector
943. Which one of the following techniques is successfully used to compare two DNA samples?
A. Hybridoma technology
B. ELISA
C. Genetic finger printing ✅
D. Gene therapy
A. Hybridoma technology
B. ELISA
C. Genetic finger printing ✅
D. Gene therapy
944. The unique feature of pluripotent stem cells is:
A. They can develop into any tissue of the body ✅
B. They can develop into whole individuals
C. They help in production of monoclonal antibodies
D. All of these
A. They can develop into any tissue of the body ✅
B. They can develop into whole individuals
C. They help in production of monoclonal antibodies
D. All of these
945. Stem cells can be obtained from:
A. Embryo only
B. Any part of the body
C. Blood only
D. Embryo, bone marrow, umbilical cord blood etc ✅
A. Embryo only
B. Any part of the body
C. Blood only
D. Embryo, bone marrow, umbilical cord blood etc ✅
946. All antibodies produced through hybridoma are:
A. Polyclonal
B. Monoclonal ✅
C. Non-active
D. Over-active
A. Polyclonal
B. Monoclonal ✅
C. Non-active
D. Over-active
947. Which of the following codons is NOT a termination codon for protein synthesis?
A. UUU ✅
B. UAG
C. UAA
D. UGA
A. UUU ✅
B. UAG
C. UAA
D. UGA
948. A type of β–lymphocyte that produces antibody is:
A. Plasma cell ✅
B. Memory cell
C. Adipocyte
D. Erythrocyte
A. Plasma cell ✅
B. Memory cell
C. Adipocyte
D. Erythrocyte
949. Which of the following are the two methods of screening?
A. Hybridization and PCR
B. ELISA and blotting
C. ELISA and PCR ✅
D. PCR and RFLP
A. Hybridization and PCR
B. ELISA and blotting
C. ELISA and PCR ✅
D. PCR and RFLP
950. Monoclonal antibodies are usually produced from:
A. Myeloma cells
B. Hybridoma cells ✅
C. Monocytes
D. Adipocytes
A. Myeloma cells
B. Hybridoma cells ✅
C. Monocytes
D. Adipocytes
951. To produce monoclonal antibodies in large scale, the techniques that can be used are:
A. In vivo in the peritoneal cavity of mice
B. In vitro in large scale culture vessels
C. Both “A” and “B” ✅
D. Neither “A” nor “B”
A. In vivo in the peritoneal cavity of mice
B. In vitro in large scale culture vessels
C. Both “A” and “B” ✅
D. Neither “A” nor “B”
952. Which one of the following therapies can be suggested to cure a person who is suffering from spinal cord injuries?
A. Hybridoma
B. Gene therapy
C. Stem cell therapy ✅
D. Recombinant DNA technology
A. Hybridoma
B. Gene therapy
C. Stem cell therapy ✅
D. Recombinant DNA technology
953. cDNA, a term used in recombinant DNA technology means:
A. Competitive DNA
B. Chemical DNA
C. Complex DNA
D. Complementary DNA ✅
A. Competitive DNA
B. Chemical DNA
C. Complex DNA
D. Complementary DNA ✅
954. Which of the following enzyme is used in PCR?
A. Taq DNA polymerase ✅
B. HRP
C. EcoRI
D. EcoRII
A. Taq DNA polymerase ✅
B. HRP
C. EcoRI
D. EcoRII
955. Which of the following enzyme is used in ELISA?
A. Taq DNA polymerase
B. HRP ✅
C. EcoRI
D. EcoRII
A. Taq DNA polymerase
B. HRP ✅
C. EcoRI
D. EcoRII
956. Which of the following is helpful in distinguishing DNA of one individual from another?
A. PCR
B. Reverse transcriptase
C. cDNA
D. RFLP ✅
A. PCR
B. Reverse transcriptase
C. cDNA
D. RFLP ✅
957. Which of the following is the correct order of organization of genetic material from largest to smallest?
A. Genome, chromosome, gene, nucleotide ✅
B. Nucleotide, gene, chromosome, genome
C. Gene, nucleotide, chromosome, genome
D. Chromosome, genome, nucleotide, gene
A. Genome, chromosome, gene, nucleotide ✅
B. Nucleotide, gene, chromosome, genome
C. Gene, nucleotide, chromosome, genome
D. Chromosome, genome, nucleotide, gene
958. A hybridoma is:
A. A hybrid cell obtained by fusing a β–lymphocyte with a myeloma cell in vitro ✅
B. A hybrid cell obtained by fusing a β–lymphocyte with a myeloma cell in vivo
C. A hybrid cell obtained by fusing 2 β–lymphocyte cells in vitro
D. A hybrid cell obtained by fusing any 2 body cells in vitro
A. A hybrid cell obtained by fusing a β–lymphocyte with a myeloma cell in vitro ✅
B. A hybrid cell obtained by fusing a β–lymphocyte with a myeloma cell in vivo
C. A hybrid cell obtained by fusing 2 β–lymphocyte cells in vitro
D. A hybrid cell obtained by fusing any 2 body cells in vitro
959. Monoclonal antibodies are nowadays used in:
A. Disease diagnosis
B. Detection of specific type of pathogen
C. Very early and accurate detection of cancer
D. All of these ✅
A. Disease diagnosis
B. Detection of specific type of pathogen
C. Very early and accurate detection of cancer
D. All of these ✅
960. _______ is a non-essential amino acid.
A. Serine ✅
B. Threonine
C. Lysine
D. Histidine
A. Serine ✅
B. Threonine
C. Lysine
D. Histidine
961. Which of the following is an essential amino acid?
A. Cysteine
B. Asparagine
C. Glutamine
D. Phenylalanine ✅
A. Cysteine
B. Asparagine
C. Glutamine
D. Phenylalanine ✅
962. Peptide bond is a:
A. Covalent bond ✅
B. Ionic bond
C. Metallic bond
D. Hydrogen bond
A. Covalent bond ✅
B. Ionic bond
C. Metallic bond
D. Hydrogen bond
963. A tripeptide has:
A. 3 amino acids and 1 peptide bond
B. 3 amino acids and 2 peptide bonds ✅
C. 3 amino acids and 3 peptide bonds
D. 3 amino acids and 4 peptide bonds
A. 3 amino acids and 1 peptide bond
B. 3 amino acids and 2 peptide bonds ✅
C. 3 amino acids and 3 peptide bonds
D. 3 amino acids and 4 peptide bonds
964. Immunoglobulin consists of:
A. A light chain and two heavy chains joined by disulfide bond
B. Two light chains and a heavy chain joined by disulfide bond
C. Two light chains and two heavy chains joined by disulfide bond ✅
D. Two light chains and two heavy chains joined by hydrogen bond
A. A light chain and two heavy chains joined by disulfide bond
B. Two light chains and a heavy chain joined by disulfide bond
C. Two light chains and two heavy chains joined by disulfide bond ✅
D. Two light chains and two heavy chains joined by hydrogen bond
965. The pattern on paper in chromatography is called:
A. Chroming
B. Chroma
C. Chromatograph
D. Chromatogram ✅
A. Chroming
B. Chroma
C. Chromatograph
D. Chromatogram ✅
966. Antibody present in secretions like tears & saliva is:
A. IgA ✅
B. IgE
C. IgG
D. IgM
A. IgA ✅
B. IgE
C. IgG
D. IgM
967. Unfolding of a protein can be termed as:
A. Renaturation
B. Denaturation ✅
C. Oxidation
D. Reduction
A. Renaturation
B. Denaturation ✅
C. Oxidation
D. Reduction
968. A process by which a protein structure assumes its functional shape or conformation is:
A. Denaturing
B. Folding ✅
C. Synthesis
D. Hydrolysis
A. Denaturing
B. Folding ✅
C. Synthesis
D. Hydrolysis
969. Which of the following is an IMINO ACID (Secondary amino acid)?
A. Alanine
B. Glycine
C. Proline ✅
D. Serine
A. Alanine
B. Glycine
C. Proline ✅
D. Serine
970. Which of the following is a true statement?
A. IgG is involved in primary immune response
B. IgM is involved in primary immune response ✅
C. IgG is involved only in secondary immune response
D. IgG and IgM both are involved in primary immune response
A. IgG is involved in primary immune response
B. IgM is involved in primary immune response ✅
C. IgG is involved only in secondary immune response
D. IgG and IgM both are involved in primary immune response
971. Which of the following enzyme is responsible for the regulation of biological nitrogen fixation?
A. Dinitrogenase reductase ✅
B. Dinitrogenase oxidase
C. Phosphatase
D. Kinase
A. Dinitrogenase reductase ✅
B. Dinitrogenase oxidase
C. Phosphatase
D. Kinase
972. Which of following is a function of macrophages?
A. Ingest large particles and cells by phagocytes ✅
B. Produce and secrete antibodies
C. Interact with infected host cells through receptors on T-cell surface
D. Interact with macrophages and secrete cytokines
A. Ingest large particles and cells by phagocytes ✅
B. Produce and secrete antibodies
C. Interact with infected host cells through receptors on T-cell surface
D. Interact with macrophages and secrete cytokines
973. Which of the following is a function of B lymphocytes?
A. Ingest large particles and cells by phagocytes
B. Produce and secrete antibodies ✅
C. Interact with infected host cells through receptors on T-cell surface
D. Interact with macrophages and secrete cytokines
A. Ingest large particles and cells by phagocytes
B. Produce and secrete antibodies ✅
C. Interact with infected host cells through receptors on T-cell surface
D. Interact with macrophages and secrete cytokines
974. Which of the following is a function of T lymphocytes?
A. Ingest large particles and cells by phagocytes
B. Produce and secrete antibodies
C. Interact with infected host cells through receptors on TCR ✅
D. Interact with macrophages and secrete cytokines
A. Ingest large particles and cells by phagocytes
B. Produce and secrete antibodies
C. Interact with infected host cells through receptors on TCR ✅
D. Interact with macrophages and secrete cytokines
975. The extra chromosomal, self-replicating, closed, double stranded and circular DNA molecule is generally termed as:
A. Chromosome
B. Plasmid ✅
C. Genomic DNA
D. Bacteriophage
A. Chromosome
B. Plasmid ✅
C. Genomic DNA
D. Bacteriophage
976. Which of the following is the largest immunoglobulin?
A. IgA
B. IgE
C. IgG
D. IgM ✅
A. IgA
B. IgE
C. IgG
D. IgM ✅
977. Which of the following antibody first reaches the site of infection?
A. IgA
B. IgE
C. IgG
D. IgM ✅
A. IgA
B. IgE
C. IgG
D. IgM ✅
978. Where do T-lymphocytes develop into fully competent but not activated T-cells?
A. The thymus gland ✅
B. The lymph nodes
C. The thyroid gland
D. The bone marrow
A. The thymus gland ✅
B. The lymph nodes
C. The thyroid gland
D. The bone marrow
979. Which of the following is an example of monosaccharide?
A. Galactose ✅
B. Sucrose
C. Lactose
D. Maltose
A. Galactose ✅
B. Sucrose
C. Lactose
D. Maltose
980. The allosteric inhibitor of an enzyme:
A. Causes the enzyme to work faster
B. Binds to the active site
C. Participates in feedback regulation ✅
D. Denatures the enzyme
A. Causes the enzyme to work faster
B. Binds to the active site
C. Participates in feedback regulation ✅
D. Denatures the enzyme
981. What is the composition of nucleoside?
A. a sugar + a phosphate
B. a base + a sugar ✅
C. a base + a phosphate
D. a base + a sugar + phosphate
A. a sugar + a phosphate
B. a base + a sugar ✅
C. a base + a phosphate
D. a base + a sugar + phosphate
982. Which of the following is an example of disaccharide?
A. Glucose
B. Fructose
C. Galactose
D. Maltose ✅
A. Glucose
B. Fructose
C. Galactose
D. Maltose ✅
983. Lactose is a disaccharide of which of the following sugar units?
A. Glucose and fructose
B. Glucose and galactose ✅
C. Glucose and sucrose
D. Glucose and ribose
A. Glucose and fructose
B. Glucose and galactose ✅
C. Glucose and sucrose
D. Glucose and ribose
984. Which of the following is an example of bacterial and yeast polysaccharide?
A. Starch
B. Glycogen
C. Cellulose
D. Dextran ✅
A. Starch
B. Glycogen
C. Cellulose
D. Dextran ✅
985. When all monosaccharides in a polysaccharide are same type, such type of a polysaccharide is called a:
A. Glycogen
B. Homoglycan ✅
C. Heteroglycan
D. Oligosaccharide
A. Glycogen
B. Homoglycan ✅
C. Heteroglycan
D. Oligosaccharide
986. Which of the following are the storage polysaccharides?
A. Glycogen ✅
B. Cellulose
C. Chitin
D. Glucose
A. Glycogen ✅
B. Cellulose
C. Chitin
D. Glucose
987. The most abundant immunoglobulin is:
A. IgA
B. IgE
C. IgG ✅
D. IgM
A. IgA
B. IgE
C. IgG ✅
D. IgM
988. Glucose is stored in plants as _______.
A. Glycogen
B. Starch ✅
C. Dextrin
D. Cellulose
A. Glycogen
B. Starch ✅
C. Dextrin
D. Cellulose
989. Glucose is stored in liver as ___________.
A. Glycogen ✅
B. Starch
C. Dextrin
D. Cellulose
A. Glycogen ✅
B. Starch
C. Dextrin
D. Cellulose
990. Which of the following are the structural polysaccharides?
A. Glycogen
B. Starch
C. Chitin ✅
D. Glucose
A. Glycogen
B. Starch
C. Chitin ✅
D. Glucose
991. Which of the following is an analogous to starch?
A. Cellulose
B. Glycogen ✅
C. Sucrose
D. Chitin
A. Cellulose
B. Glycogen ✅
C. Sucrose
D. Chitin
992. Identify the purine base of nucleic acids in the following:
A. Cytosine
B. Thymine
C. Uracil
D. Adenine ✅
A. Cytosine
B. Thymine
C. Uracil
D. Adenine ✅
993. Which of the following are not the components of RNA?
A. Thymine ✅
B. Adenine
C. Guanine
D. Cytosine
A. Thymine ✅
B. Adenine
C. Guanine
D. Cytosine
994. What is the composition of nucleotide?
A. a sugar + a phosphate
B. a base + a sugar
C. a base + a phosphate
D. a base + a sugar + phosphate ✅
A. a sugar + a phosphate
B. a base + a sugar
C. a base + a phosphate
D. a base + a sugar + phosphate ✅
995. Group of adjacent nucleotides are joined by:
A. Phosphodiester bond ✅
B. Peptide bond
C. Ionic bond
D. Covalent bond
A. Phosphodiester bond ✅
B. Peptide bond
C. Ionic bond
D. Covalent bond
996. The sugar molecule in a nucleotide is:
A. Pentose ✅
B. Hexose
C. Tetrose
D. Triose
A. Pentose ✅
B. Hexose
C. Tetrose
D. Triose
997. Building blocks of nucleic acids are:
A. Nucleotides ✅
B. Nucleosides
C. Amino acids
D. Histones
A. Nucleotides ✅
B. Nucleosides
C. Amino acids
D. Histones
998. Number of hydrogen bonds between adenine and thymine?
A. One
B. Two ✅
C. Three
D. Four
A. One
B. Two ✅
C. Three
D. Four
999. Number of hydrogen bonds between guanine and cytosine?
A. One
B. Two
C. Three ✅
D. Four
A. One
B. Two
C. Three ✅
D. Four
1000. Which ratio is constant for DNA?
A. A + G / T + C
B. A + T / G + C ✅
C. A + C / U + G
D. A + U / G + C
A. A + G / T + C
B. A + T / G + C ✅
C. A + C / U + G
D. A + U / G + C
