Question

You are doing lab work with a new species of beetle. You have isolated lines that breed true for either blue shells and long antenna, or green shells and short antenna. Crossing these lines yields F1 progeny with blue shells and long antenna. Crossing F1 progeny with beetles that have green shells and short antenna yield the following progeny: blue shell, long antenna 82 green shell, short antenna 78 blue shell, short antenna 37 green shell, long antenna 43 total 240 a. Which shell color and antenna length alleles are dominant?

Answer 1

Due to the fact that when crossing the isolated lines, the F1 progeny expression resulted in all alleles having blue shells and long antennas, the dominant shell/color & length/antenna combination is:

"Blue Shell & Long Antenna"