Question

Consider the following statements regarding linkage.
(i) The linked genes are located on the same chromosome.
(ii) Crossing over between linked genes is maximum.
(iii) The linkage can be broken by crossing over.
(iv) Linkage is against Mendel's law of segregation.
Out of these statements

• A. (i) and (iii) are correct
• B. (i) and (ii) are correct
• C. (ii), (iii) and (iv) are correct
• D. (i), (iii) and (iv) are correct

Answer 1

Answer: (A)

Genes which are present close to each other on the chromosome are said to be linked. Such genes generally are inherited together and show parental combinations. Although, sometimes they get separated during crossing over to make new combinations.