Shown here is a representation of a portion of a pair of schmoos chromosomes
Crossing over would probably be most frequent between
A) hair and legs.
B) hair and eyes.
C) eyes and legs.
D) eyes and arms.
Answer: A
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Which of the following is an example of gene regulation at the posttranslational level?
A. Initiation of protein synthesis B. Alteration of protein structure C. Prevention of RNA synthesis D. Early termination of an mRNA transcript
Migratory birds in the Northern Hemisphere most likely head to tropical overwintering grounds because ____
a. they are looking for appropriate sites for egg-laying b. of seasonal changes in the abundance of predators c. they are looking for appropriate breeding sites d. of seasonal changes in food supplies e. they are ectotherms and cannot withstand cold temperatures
A kidney dialysis machine ____
a. may cleanse the patient's blood outside the body b. may use the patient's chest cavity as the site for solute exchange c. replaces solutes in blood lost by urination d. used by patients after a kidney transplant e. is used to treat kidney stones
DNA Pol III catalyzes the addition of successive nucleotides to the 5' end of a growing polynucleotide chain
__________________ Indicate whether the statement is true or false.