A human X-linked gene is ____
a. found only in males
b. more frequently expressed in females
c. found on the Y chromosome
d. transmitted from father to son
e. found on the X chromosome
ANSWER: e
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What mechanisms do ectothermic animals have for thermoregulation? Check all that apply.
_____ countercurrent heat exchange _____ changing the rate of heat production by muscular activity _____ changing the rate of heat loss by vasodilation and vasoconstriction _____ relocating to warm areas when too cold, or to cooler areas when too hot _____ insulation in the form of feathers or fur
An organ that is hygroscopic
a. is sensitive to changes in moisture. b. is exemplified by the peristomal teeth in the sporophyte of mosses. c. may aid in spore dispersal in mosses. d. is all of the above.
Imagine that the genetic code were read in a non-overlapping fashion, using only two nucleotides to specify an amino acid (i.e., the sequence above would be read: AU-GA-UG and so on)
Which of the following polypeptides would be obtained by translating the sequence above? Answer the questions below based on this RNA sequences: 5'-AUGAUGAUGAUG-3' This RNA transcript was generated using a synthetic DNA template. The letters B, D, E, F, G, and H have been selected to represent different amino acids. Assume that each codon is a different amino acid. A) B-B-B-B-B-B. B) B-D-B-D-B-D. C) B-B-B-D-D-D. D) B-D-E-F-G-H. E) B-D-E-B-D-E.
Today _______ is defined as having a body mass index (BMI) of 30 or greater
Fill in the blank(s) with the appropriate word(s).