In flies, the group of homeobox genes that determines the identities of each segment of a fly's body is the group known as
a. promoters
b. operators
c. silencing complexes
d. Hox genes
Ans: d. Hox genes
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Which one of the following is the best definition of diffusion?
A. the tendency of molecules to move in space due to kinetic energy B. the movement of substances from an area of high concentration to an area of low concentration C. the movement of a substance across a membrane D. the movement of a substance by osmosis
The wild type eye color for humans is
A) brown. B) green. C) hazel. D) pink.
What is produced during the first and second stages of aerobic respiration that are needed for the final stage (electron transfer phosphorylation)?
What will be an ideal response?
Below are two statements. Which (if any) applies to the law of segregation? Which (if any) applies to the law of independent assortment?
I: Phenotypes for long tails and big eyes are inherited separately in lab mice. II: A baby mouse inherits a maternal red-eye allele and a paternal black-eye allele. A) I: segregation; II: independent assortment B) I: independent assortment; II: segregation C) I: segregation; II: segregation D) I: independent assortment; II: independent assortment