I believe it's called a sex-linked trait, if I'm remembering correctly. This is because men do not have an X chromosome, therefore it would be linked to females.
Answer:
A genetic engineer would be most likely to genetically modify the chickens, with the trait being production of unfertilized eggs. (B)
Solutes dissolved in water on either side of the cell membrane will tend to diffuse down their concentration gradients, but because most substances cannot pass freely through the lipid bilayer of the cell membrane, their movement is restricted to protein channels and specialized transport mechanisms in the membrane
Vestigal structures is the answer!!
D. A mole digging tunnels in the ground
