In a species of hypothetical insect-like animal, neck length is polygenic trait. A mating occurs between an individual
Posted: Tue Jul 12, 2022 1:21 pm
In a species of hypothetical insect-like animal, neck length ispolygenic trait. A mating occurs between an individual withthe shortest possible neck (16 cm) and an individual with thelongest possible neck (24 cm).
All the F1 offspring have necks that are 20 cm long.
In the F2 generation, thereare nine phenotypes ranging from 16 cm to 24cm.
A. Assuming that the alleles that contribute to necklength act additively, how many genes control necklength? (2 pts)
B. Explain how you figured out youranswer. (1-3 sentences) (4 pts)
All the F1 offspring have necks that are 20 cm long.
In the F2 generation, thereare nine phenotypes ranging from 16 cm to 24cm.
A. Assuming that the alleles that contribute to necklength act additively, how many genes control necklength? (2 pts)
B. Explain how you figured out youranswer. (1-3 sentences) (4 pts)