Question

Which of the following is true about linkage ?
I. It is phenomenon in which more recombinants are produced in $F _{2}$-generation.
II. More parental combinations are produced in $F _{2}$-generation.
III. Genotype which are present in $F_{1}$ hybrid, reappear in high frequency in $F _{2}$-generation.
IV. It is a phenomenon in which two chromosomes are linked.
Choose the correct option.

• A. Only I
• B. Only II
• C. I and III
• D. III and IV

Answer 1

Answer: (A)

Statement I is the only correct statement about linkage.
Rest of the statements are incorrect and can be corrected as
• Less parental combinations are produced in $F _{2}$-generation.
• Genotype which were present in $F_{1}$ hybrid, reappeared in low frequency in $F _{2}$-generation.
• Linkage is the phenomenon in which two genes are physically linked.