Question

In Drosophila, two genes on the fourth chromosome, bent wings (b) and shaven bristles (svn) are completely linked. If a fly with the genotype bb svnsvn is crossed to a fly with the genotype b+b+ svn+svn+, what type(s) of gametes will their offspring produce?

Answer 1

Answer:

b+ svn+ and b svn

Explanation:

Linked genes may be defined as the genes that are present on the same chromosomes. These genes are physically close together and can be inherited as a single unit in the progeny.

The bent wings (b) and shaven bristles (svn) are completely linked means that they can inherit as a single unit in the progeny. The cross between  bb svnsvn and b+b+ svn+svn+ leads to the gamete formation of the genotype b+ svn+ and b svn  in their off spring.