Question

Which is incorrect about DNA polymorphism?

• A.
  The two alleles of a chromosome contain different copy numbers of VNTR
• B.
  DNA from different tissues from an individual shows different degrees of polymorphism
• C.
  Different chromosomes contain different copy numbers of VNTR
• D.
  Polymorphisms are inheritable from parents to children.

Answer 1

The correct option is B

DNA from different tissues from an individual shows different degrees of polymorphism
DNA polymorphism

Polymorphism refers to the variations in the genetic level (mutations) that can be inherited and present at high frequency in a population.

Statement 4

Each and every cell of an organism carries the same DNA. Only the expression of some of the genes varies from tissue to tissue or cell to cell. Therefore, VNTR also remains the same in every tissue. Thus, the given statement is incorrect.

Final answer:

(d) DNA from different tissue from an individual shows the different degree of polymorphism