In chickens, feathered shanks, A, are dominant to clean, a, and white plumage, B, is dominant to black, b. A feathered-shanked,
white, rose-combed bird was crossed with a clean-shanked, white, walnut combed bird and the following offspring were produced: 2 feathered-shanked, white, rose-combed chicks 3 feathered-shanked, black, pea-combed chicks 1 feathered-shanked, white, single-combed chick 4 clean-shanked, white, walnut-combed chicks 1 clean-shanked, black, single-combed chick 2 clean-shanked, white, rose-combed chicks What are the genotypes of the parents? You must show your work in an orderly fashion. I need to be able to follow your logic in order to earn credit. Option 1: AaBbRrdd and aaBbRrDd Option 2: AaBbRRdd and aaBbRrDd Option 3: AaBbRrdd and aaBbRRDd Option 4: AaBBRrdd and aaBbRrDd More than one of the above may be correct
Smooth muscle is found in the walls of hollow organs throughout the body.
Smooth muscle contractions are involuntary movements triggered by impulses that travel through the autonomic nervous system to the smooth muscle tissue.
<u>The smooth muscle of the alimentary canal or the digestive tract facilitates the peristaltic waves that move swallowed food and nutrients.</u>