Ch. 27 The Reproductive System
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- The normal diploid number of human chromosomes is a. 48, b. 47, c. 46, d. 23, e. 24.
Problem 1
- Relative to differences between mitosis and meiosis, choose the statements that apply only to events of meiosis. a. tetrads present, b. produces two daughter cells, c. produces four daughter cells, d. occurs throughout life, e. reduces the chromosomal number by half, f. synapsis and crossing over of homologues occur.
Problem 2
- Which of the following is correct relative to female anatomy? a. the vaginal orifice is the most dorsal of the three openings in the perineum, b. the urethra is between the vaginal orifice and the anus, c. the anus is between the vaginal orifice and the urethra, d. the urethra is the more ventral of the two orifices in the vulva.
Problem 5
- The corpus luteum is formed at the site of a. fertilization, b. ovulation, c. menstruation, d. implantation.
Problem 11
- Trace the pathway of a sperm from the male testes to the uterine tube of a female.
Problem 18
- Gina Marciano, a 44-year-old mother of eight children, visited her physician complaining of a 'bearing down' sensation in her pelvis, low backache, and urinary incontinence. A vaginal examination showed that the external os of her cervix was just inside the vaginal orifice and her perineum exhibited large keloids (masses of scar tissue). What do you think Gina's problem is and what caused it? (Be anatomically specific.)
Problem 22