Purple flower (A) is dominant over white flower (a), and tall stem (B) is dominant over short stem (b). The Punnett square
represents a cross between two dihybrids (AaBb ? AaBb).
In the figure above, how many plants would have the genotype AaBb?
a. 1
b. 3
c. 4
d. 6
e. 9
ANSWER: c
Biology & Microbiology
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A set of SNPs close together on a chromosome is called a(n) ____________________
Fill in the blank(s) with correct word
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The atomic number is the number of
a. neutrons and protons. b. neutrons and electrons. c. protons and electrons. d. protons only. e. neutrons only.
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The lymph vascular system begins at
a. the heart. b. the veins. c. the arteries. d. the arterioles. e. the capillaries.
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When light hits a pigment, how many electrons are excited by a single photon?
a. one b. two c. three d. four
Biology & Microbiology