The differences in inherited traits among individuals in a population are called _______
A. species variation
B. genetic mutations
C. genetic variation
D. natural selection
E. None of these
C
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Mercury can serve as a transcriptional activator in the regulation of certain genes
Indicate whether the statement is true or false.
What enzyme catalyzes the attachment of amino acids to tRNA molecules?
A. helicase B. topoisomerase C. aminoacyl-tRNA synthetase D. ribosome E. translation factor
A researcher returns from the Amazon River with 10 individuals of a species of fish and establishes a small breeding colony in her laboratory
She maintains the colony for several years (many fish generations), always maintaining the number of adult fish between 10 and 30. She notices that as generations of fish are bred, the reproductive rate decreases. What is the most likely reason for this? A) inbreeding depression B) increased genetic variability C) random mutations D) heterozygote advantage
The Calvin cycle consumes CO2 and produces which of the following products?
a. ATP b. G3P c. NADPH d. rubisco