While phenotypically male, smaller testes, enlarged breasts, and reduced body hair are all signs of a non-disjunction error condition that results in an XXY genotype. Which kind of error results in XXY genotype, called Klinefelter syndrome?
a. point mutation
b. deletion
c. non-disjunction
d. crossing over
c. non-disjunction
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For a bike racer to maintain the lead during the Tour de France, s/he would be relying on:
a. anaerobic metabolism of glucose as the primary energy source. b. ATP stored in the muscle as the primary energy source. c. creatine phosphate as the primary energy source. d. insulin to convert glycogen to glucose for energy. e. the anaerobic metabolism of lactic acid.
When an endospore germinates, it gives rise to two daughter cells called vegetative cells
Indicate whether the statement is true or false
DNA-binding transactivators are:
A. necessary only for initiation of transcription of housekeeping genes. B. factors that bind to other proteins, not to DNA directly. C. factors that complex directly with RNA Pol II to form a preinitiation complex. D. factors that bind to enhancers.
What is not a main factor of change to bathygraphic features in the ocean?
a. Subsidence b. Erosion c. Sedimentation d. Uplift