Diploid somatic cells of elephants have 56 chromosomes. If nondisjunction of one of an elephant's chromosomes occurs in meiosis I, the resulting sperm are expected to have the chromosome complement:
A. 28, 28, 28, 28
B. 28, 28, 29, 27
C. 29, 29, 27, 27
D. 29, 29, 28, 28
E. 56, 56, 57, 55
C
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What does it mean to say that humans are neotenous?
A. that humans take longer to reach sexual maturity B. that humans in their juvenile state resemble adult chimpanzees C. that humans in their adult state resemble juvenile chimpanzees D. that humans reach sexual maturity quicker than chimpanzees E. None of the answer options is correct.
Species of Streptococcus and Staphylococcus produce_____, substances that are toxic to white blood cells, including phagocytes
Fill in the blank(s) with the appropriate word(s).
This disorder involves a cycle of eating binges and purges. The cause is thought to be psychological, stemming from depression, low self-esteem, displaced anger, a need to be in control of one's body, or a personality disorder.
A. obesity B. anorexia nervosa C. bulimia D. All of these answers are true.
The Ebola virus targets cells of the
a. liver. b. kidney. c. spleen. d. liver and spleen.