In standardized DNA fingerprinting used in the United States,
a. 13 different noncoding loci are examined.
b. 13 different coding loci are examined.
c. only loci with short tandem repeats are tested; the number varies with individuals.
d. the loci with long tandem repeats are tested; the number varies with individuals.
e. the sequence of short tandem repeats is determined.
A
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Which of the following allows more than one type of protein to be produced from one gene?
A) alternative forms of chromatin remodeling B) alternative forms of RNA splicing C) alternative forms of nucleosomes D) control of the frequency of translation initiation
Small molecules can move between capillaries and interstitial fluid by _____
a. passive transport b. active transport c. endocytosis d. diffusion e. exocytosis
One use of PCR has been to monitor the trafficking of endangered organisms
Suppose that one suspect was accused of illegally importing a specific animal, but the suspect asserts that the young animal had been bred in this country from two resident zoo animals. How would you best proceed? A) Use blood cells to obtain DNA from the animals and look for sequences found only in illegally traded ones. B) Use DNA obtained from biopsy of the suspect organism and use a probe for infectious agents found more frequently in its native country. C) Use DNA obtained from the possibly imported animal and treat with restriction enzyme; use a probe for disease genes common in its native country. D) Use DNA from hair follicles of supposed zoo parents and of the supposed offspring to compare sequences amplified with primers for a highly polymorphic region. E) Amplify highly polymorphic regions from zoo and native populations to compare with the suspect organism.
Complete metamorphosis is considered to occur in a species if
A) the larva and adult have different diets. B) the larva and adult live in different habitats. C) a pupation stage separates the larval and adult stages. D) the adult has wings, but the larva does not.