There is about as much nuclear DNA in a primary spermatocyte as in ________ spermatids

A) 3 B) 1 C) 2 D) 0.5 E) 4


Answer: E

Biology & Microbiology

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List at least three types of information provided by a karyotype and interpret the chromosomal structural abnormality written as 46,XX,t(18q)

What will be an ideal response?

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Which soil horizon is composed of organic litter?

a. O Horizon b. A Horizon c. B Horizon d. C Horizon e. Bedrock

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Genetic recombination as a result of crossing over occurs more readily in genes that

a. are on the sex chromosomes. b. are on the autosomes. c. are located close together on the same chromosome. d. are located farther apart on the same chromosome. e. are located on different chromosomes.

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Which molecule is released in tissues and diffuses to the target cell?

a. thyroid hormone b. insulin c. adrenalin d. prostaglandins e. growth hormone

Biology & Microbiology