Suppose that you have a population of guinea pigs in
which two-thirds of the alleles for coat color specify
black, and one-third specify white. According to the
Hardy-Weinberg rule, what will be the ratio of these
alleles in the gene pool in future generations,
provided all the guinea pigs reproduce?
a. 1:1
b. 2:1
c. 3:1
d. 6:1
e. 7:1
Answer: b
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What is the primary limiting factor that determines why no female animal can produce a very large number of very large eggs?
A) Time is limited. B) There are energy constraints. C) Temperature constraints will prevent females from carrying too many eggs. D) Male availability is limited. E) There will be an increase in predation pressure if the females carry too many large eggs.
The process of transcription refers to the use of information encoded in ____ to make ____
a. RNA; a complementary DNA copy b. DNA; a polypeptide c. DNA; a complementary RNA copy d. a polypeptide; RNA e. RNA; a polypeptide
Relative to the mRNA, which of the following moves during translocation?
a. attached tRNAs and the ribosome b. attached tRNAs and the polypeptide chain c. the ribosome only d. the ribosome and the polypeptide chain e. the polypeptide chain only
The general sequence by which a plant responds to external stimuli is
A. input-reflex-output. B. leaf-stem-root. C. reception-transduction-cellular response. D. sensory nerve-interneuron-motor nerve. E. chloroplast-vascular bundle-sap.