Doubtly
@Doubtly · Joined Feb 2021
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- The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G1 phase is 8, what would be the (2) 8 is the correct option 2
- Receptors for sperm binding in mammals are present on: (1) Zona pellucida (2) Corona radiata (3) Vitelline membrane (4) Perivitelline space (1) Zona pellucida 2
- Succus entericus is referred to as : (1) Chyme (2) Pancreatic juice (3) Intestinal juice (4) Gastric juice Succus entericus is referred to as : Intestinal juice 2
- Identify the correct statement. (1) Split gene arrangement is characteristic of prokaryotes. (2) In capping,methyl guanosine (3) RNA polymerase binds with Rho factor to terminate the process of in bacteria. 1
- Plasmid pBR322 has PstI restriction enzyme site within gene amp R that confers ampicillin resistance. (2) It will not be able to confer ampicillin resistance to the host cell. 1
- Which of the following statements is incorrect ? (1) Oxidation-reduction reactions produce proton gradient in respiration. (3) In ETC (Electron Transport Chain), one molecule of NADH+H+ gives rise to 2 ATP molecules, and one FADH2 gives rise to 3 ATP molecules. 1
- DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as: (1) Polymorphic DNA (2) Satellite DNA (3) Repetitive DNA is correct option 2
- Now a days it is possible to detect the mutated gene causing cancer by allowing radioactive probe to hybridise its complimentary DNA (4) Mutated gene does not appear on a photographic film as the probe has no complimentarity with it. 1
- Which of the following statements is incorrect ? (1) Cyclic photophosphorylation involves both PSI and PSII. (2) Both ATP and NADPH+H+ (1) Cyclic photophosphorylation involves both PSI and PSII. 2
- What is the role of RNA polymerase III in the Process of transcription in eukaryotes ? (1) Transcribes only snRNAs (3) Transcribes tRNA, 5s rRNA and snRNA 2
- In some members of Which of the following pairs of families, pollen grains retain their viability for months after release (1) Rosaceae ; Leguminosae 2
- Which of the following statements is correct? (1) Some of the organisms can fix atmospheric (3) Fusion of protoplasms between two motile on non-motile gametes is called Plasmogamy. 1
- Which of the following is a correct sequence of steps in a PCR (Polymerase Chain Reaction) (2) Denaturation, Annealing, Extension 2
- Which of the following is not an application of PCR (Polymerase Chain Reaction)? (1) Detection of gene mutation (2) Molecular diagnosis (4) Purification of isolated protein 2
- Amensalism can be represented as: (1) Species A (+); Species B (0) (2) Species A (–); Species B (0) 2
- Which of the following are not secondary metabolites in plants? (1) Rubber, gums (2) Morphine, codeine (3) Amino acids, glucose (4) Vinblastin, curcumin (3) Amino acids, glucose is the correct option 2
- The plant hormone used to destroy weeds in a field (1) IBA (2) IAA (3) NAA (4) 2,4-D 2,4-D : The plant hormone used to destroy weeds in a field 2,4-D 1
- When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as Metacentric :: When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as Metacentric 1