A ________ is a sequence-specific recognition protein with endonuclease activity.
A. restriction endonuclease
B. DNA ligase
C. terminal transferase
D. DNA helicase
Answer: A
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The natural habitat of L. pneumophila is:
a. freshwater streams. b. the upper respiratory tract of humans and animals. c. the large intestine of humans and animals. d. foods contaminated by soil.
In a human fetus that has the XX combination of sex chromosomes, the gonads develop into ovaries
a. True b. False
According to Watson and Crick's model, DNA consists of two strands of nucleotides that are antiparallel. What does this mean? What evidence supports the antiparallel nature of the strands?
What will be an ideal response?
Which term describes the forcing out of water at the surface of a plant's leaves?
A. atmospheric pressure B. water stress C. root pressure D. transpiration E. guttation