Random movement from a region with higher concentration to a region with lower concentration in the cell is called ________
Fill in the blank(s) with correct word
simple diffusion
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What type of thinking is required?
What will be an ideal response?
In a certain breed of chicken, an incomplete dominant gene controls color. The homozygous black (BB), when crossed
with the homozygous splashed-white (bb), produces an intermediate gray color pattern referred to as blue. A second gene controls the shape of the comb. The dominant allele (R) produces rose, whereas the recessive allele (r) produces single. Give the F1 and F2 genotypic and phenotypic ratios of a cross between a true-breeding black with a single comb and a true-breeding splashed-white with a rose comb. What will be an ideal response?
Use a specific example to explain how a negative feedback mechanism may be used to regulate the
function of endocrine glands. What will be an ideal response?
Which of these is a source of lactose?
a. potatoes b. milk c. sugar cane d. starch e. sugar beets