The location of a gene on a chromosome is the ____
a. genotype
b. phenotype
c. locus
d. allele
e. histone
ANSWER: c
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Choose the true statements about HOX and MADS box genes.
_____ They evolved after the divergence of plants and animals. _____ They encode transcription factors. _____ They influence the expression of other genes. _____ They influence the development of body plan in animals but do not function in plants.
Which of the following has high compliance, allowing it to hold a large volume of blood with little change in pressure?
A) vein B) arteriole C) artery D) capillary E) venule
Which of the following cells attacks virally infected cells and cancer cells?
A) Helper T cell B) Cytotoxic T cell C) Dendritic cell D) B cell E) Macrophage
Which strategies would a seawater fish with an internal osmolarity of 320mOsm/L living in a marine environment of 1010mOsm/L utilize to maintain internal ion and water homeostasis?
A. Produce copious amounts of dilute urine. B. Drink seawater and actively transport salts into their bodies at the gills. C. Drink seawater and actively excrete salts out of their bodies across the gills. D. Don't drink seawater and actively transport salts into their bodies at the kidneys. E. All of the choices for this question are correct.