Question

A scientist is studying fruit fly wings. Straight wings are dominant, and curly wings are recessive. Which statement correctly describes the F1 generation if a straight-winged parent is crossed with a curly-winged parent and if both parents are true breeding?

Answer 1

Step-by-step explanation:

Should we use Punnett Square technique, all dominate alleles from straight-wingled parent will pair up with all recessive alleles from curly-winged parents; therefore,

F1 genotype: All Aa

F1 phenotype: All straight-winged

Answer 2

Let straight wings = AA
Let curly wings = aa

P: straight-winged x curly-winged
P: AA x aa
Should we use Punnett Square technique, all dominate alleles from straight-wingled parent will pair up with all recessive alleles from curly-winged parents; therefore,
F1 genotype: All Aa
F1 phenotype: All straight-winged