Primates are associated with all of the following except
Select one:
a. nails rather than claws.
b. a larger brain (cerebral) volume.
c. opposable thumb and sometimes large toe.
d. eyes on the sides of the head.
e. good hand-eye coordination.
d. eyes on the sides of the head.
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In addition to causing skin cancer later in life, ultraviolet light destroys the B vitamin folate. Folate deficiencies in pregnancy may result in birth defects
Which of the following do you think is a stronger selective pressure for high skin pigmentation in high UV environments? A. skin cancer prevention B. birth defect prevention C. both are equal
Which of the following statements about transcriptional regulation is incorrect?
A. Regulatory transcription factors are proteins that bind to enhancer DNA sequences and then recruit one or more general transcription factors. B. A typical gene contains only one enhancer sequence. C. General transcription factors are required to initiate the process of transcription. D. General transcription factors bind to the TATA box in the promoter region of a gene. E. RNA polymerase components are recruited to the promoter region by the general transcription factors bound to the TATA box.
Two genes that share a common ancestral gene will probably have significant homology
Indicate whether the statement is true or false
Which of the following varies rhythmically with respiration?
A) atmospheric pressure only B) intrapleural pressure only C) intra-alveolar pressure only D) both intrapleural pressure and intra-alveolar pressure E) both atmospheric pressure and intrapleural pressure