Home
Class 12
BIOLOGY
Which of the following statement are tru...

Which of the following statement are true for genetic drift ?
I. It upsets the Hardy-Weinberg equilbrium
II. It operates only in small population
III. It is responsible for preserving certain genes
IV. It is responsible for eliminating certain genes

A

I,II,III

B

II,III,IV

C

I,II,IV

D

I,II,III,IV

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Which of the following is correct about genetic drift? I.Genetic drift is called as Sewall Wright effect II. Genetic drift increases genetic variability with in a small population IV. Genetic drift is more effective in large population

Which of the following statements are correct ? I. The structural gene is the segment of DNA, which exercises a central over transcription II. The regulator gene is responsible for the synthesis of repressor. IIIgt The operator gene is the segment of DNA, which carries code for the synthesis of protein IV.The promoter gene is the DNA segment at which RNA polymerase binds

Which of the following statements are correct ? I. Peptidyl transferase helps in the process of peptide bond formation II. The regulator, promoter and operator together called the control genes III. Polypeptide chain elongation continues untill a termination codon reaches the ribosomes IV. Gene regulation in eukaryotes can be explained by lac operon model

Which of the following statements are correct? I. IgM is the first immunoglobulin produced in a primary response to an antigen. II. IgD protects the body fluids and also stimulates phagocytes and complement system. III. IgE acts as mediation in allergic response. IV. IgE protects from inhaled and ingested pathogens thus, protects the body surface. Codes

Which of the following statements are incorrect ? I. Term PCR is used for organisms, which carry foreign genes. II. SCID includes genetic disorders only. III. Cloning is the production of GMOs, e.g. Flaur saur tomato. IV. The bacteria use restriction endonucleases to destroy the DNA of invading foreign viruses.

Which of the following statements are true related to the given figure? (I) When a daughter has one haemophilic gene, she is a carrier. (II) When the son has one haemophilic gene, he is diseased. (III) When the son has one haemophilic gene, he is not diseased. (IV) When a daughter has one haemophilic gene, she is not a carrier.

Which of the following is correct ? I. Migration is the movement of individuals from a population to another population II. Emigration is the migration of individuals out of an area III. Immigration is the migration of individuals into an area IV Gene flow cannot alter the genetic charecteristics of populations