DNA contains two identical polynucleotide chains

a. True
b. False


False

Biology & Microbiology

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____ describes the process whereby a phagocyte, in response to cytokines secreted by dendritic (or other) cells, exits a blood vessel and moves into an infected region of tissue

Fill in the blank with the appropriate word.

Biology & Microbiology

A tall plant is crossed with a short plant, and the progeny are all intermediate in size between the two parental plantsIf the intermediate F1 progeny were allowed to self-pollinate, and the F2 progeny were also intermediate in size, but following a normal distribution, this would suggest

A) incomplete dominance. B) polygenic inheritance. C) complete dominance. D) a strong environmental influence. E) codominance..

Biology & Microbiology

Which of the following statements about con transport of solutes across a membrane is correct?

a. cotransport proteins allow a single ATP-powered pump to drive the active transport of many different solutes b. in cotransport, both solutes that are being transported are moving down their chemical gradients c. The sodium-potassium pump is an example of a cotransport protein d. cotransport involves the hydrolysis of ATP by the transporting protein e. a cotransport protein is most c

Biology & Microbiology

Which of the following statements about malaria is false? 

A. Fertilization occurs within a mosquito. B. Merozoites are found inside red blood cells. C. Gametocytes develop from merozoites. D. Sporozoites are only found within a mosquito. E. Gametocytes are passed to a feeding mosquito.

Biology & Microbiology