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?

Question

Biology

Tristin Burke

11 November, 08:48

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?

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Answers (1)

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Bo Moyer · Answer 1

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.