Answer:
D.Singed bristles/vestigial wings and normal bristles/normal wings
Explanation:
Parent 1: singed bristles and normal wings ( ssLL )
Parent 2: normal bristles and vestigial wings (SSll)
ssLL X SSll =
F1: SsLl ( normal wings and normal bristles )
SsLl X ssll =
F2:
Sl/sl = normal bristles and vestigial wings = Parental
sL/sl = singed bristles and normal wings = Parental
SL/sl = normal bristles and normal wings = Recombinant
sl/sl = singed bristles and vestigial wings = Recombinant
since, singed bristles/ vesitigal wings and normal bristles/normal wings are different from parental combinations, they are the recombinant offspring.
Amino acids speed up or slow down the chemical reactions of organisms
Answer in link
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