27 d
In a perfectly controlled laboratory environment, a pure-breeding fish with a 23-mm tail was crossed to a
pure-breeding fish with a 15-mm tail. In the F1, all individuals had tails of an intermediate length: 19 mm.
If tail length is a typical polygenic trait controlled entirely by the equal and additive effect of two
unlinked genes, each with two alleles ("+" and "-"), what phenotypic ratios do you expect to find in the
F2?
out of
question
1
A
B
1

The images show the wings of a bat and a bee. from this evidence, what can you conclude about the evolutionary relationship between these organisms? a. the wing structures of the bat and the bee are different, indicating they didn’t inherit wings from a common ancestor. b. the wing structures of the bat and the bee are different, indicating they inherited wings from a common ancestor. c. the functions of bat wings and bee wings are the same, indicating they obtained wings from a common ancestor. d. the functions of bat wings and bee wings are different, indicating they didn’t obtain wings from a common ancestor.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Nh3 +02-no + h20 is unbalanced what is the balanced equation