This diagram of the human life cycle shows that ________.

A. meiosis produces a diploid zygote
B. fertilization produces a haploid zygote
C. meiosis produces haploid sperm and egg cells
D. a diploid zygote undergoes meiosis to produce an adult human


C. meiosis produces haploid sperm and egg cells

Biology & Microbiology

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In diabetes insipidus,

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Which one of the following activities would least likely be found in a topoisomerase?

A. cutting a phosphodiester linkage B. inducing or relaxing twists in double- stranded DNA C. adding nucleotides to the end of a DNA strand D. reforming phosphodiester linkages E. Topoisomerases are equally likely to perform all of these functions.

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Which hormone directly stimulates spermatogenesis?

a. luteinizing hormone b. follicle stimulating hormone c. oxytocin d. testosterone

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