A human female haploid cell has which sex chromosome combination?

a. XX
b. XY
c. YY
d. X
e. Y


ANSWER: d

Biology & Microbiology

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The unit of heredity is the ____________

Fill in the blank(s) with correct word

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The rate of diffusion is affected by the permeability of the membrane to the diffusing solute

a. True b. False

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Which organ system filters wastes from the

blood?

a. respiratory b. urinary c. digestive d. endocrine e. circulatory

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Serves as an intracellular second-messenger molecule

a. Adenylate cyclase b. G-protein c. Carrier protein d. cAMP e. Ion channel receptor protein

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