The process by which double-stranded, homologous chromosomes exchange genetic material is known as
A. crossing over, and it occurs in interphase.
B. crossing over, and it occurs in mitosis.
C. crossing over, and it occurs in meiosis.
D. interphase, and it occurs in meiosis.
E. interphase, and it occurs in mitosis.
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Question 2) A cell that contains 23 pairs of chromosomes is
A. polyploid.
B. diploid.
C. haploid.
D. monoid.
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Question 3) A child has the same number of chromosomes as each of his parents. This is because the gametes that combined when that child was conceived each contained _____ chromosomes.
A. 12
B. 23
C. 46
D. 92
E. 2
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Question 4) The anterior border to the perineum is the
A. anus.
B. pubic symphysis.
C. ischial tuberosity.
D. bulbospongiosus muscle.
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Question 5) The most primitive type of ovarian follicle is a _____________ follicle.
Fill in the blank with correct word.
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Question 6) Human somatic cells contain only one pair of
A. chromosomes.
B. autosomes.
C. homologous chromosomes.
D. sex chromosomes.
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Question 7) Prior to puberty, the anterior pituitary does not release FSH and LH.
Indicate whether this statement is true or false.
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Question 8) The primary target cells for GnRH are located in the
A. hypothalamus.
B. gonads.
C. anterior pituitary gland.
D. adrenal gland.
E. genitals.
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Question 9) The perineum consists of an anterior
A. ischial tuberosity and a posterior anal ellipse.
B. urethral orifice and a posterior pubic crest.
C. false pelvis and a posterior true pelvis.
D. urogenital triangle and a posterior anal triangle.
E. pubic quadralateral and a posterior anal rhombus.
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Question 10) Puberty is initiated when a region of the brain begins secreting
A. luteinizing hormone.
B. estrogen or testosterone.
C. follicle-stimulating hormone.
D. gonadotropin-releasing hormone.
E. androgens.
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