Consider a cell in which nondisjunction occurs for all chromosomes during meiosis I. What would be the result of this event?
A. two aneuploid gametes, each with an extra set of chromosomes
B. two haploid gametes and one aneuploid gamete with an extra set of chromosomes
C. four aneuploid gametes
D. four haploid gametes
E. two haploid gametes and two polyploidgametes
A. two aneuploid gametes, each with an extra set of chromosomes
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Both extremes of an array of phenotypes are favored in _____ .
A. directional selection B. genetic drift C. gene flow D. disruptive selection E. stabilizing selection
What type of thinking is required?
What will be an ideal response?
The uterine cycle is also called the ovarian cycle
Indicate whether the statement is true or false.
The silverfish
a. have incomplete development. b. undergo direct development. c. parasitize other insects. d. produce large quantities of ammonia waste. e. fit none of these descriptions.