Which is not a portal of entry?
a. Gastrointestinal tract
b. Urogenital tract
c. Respiratory system
d. Circulatory system
e. Skin
d. Circulatory system
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During which of the following steps of the TCA cycle does substrate-level phosphorylation take place?
A) TCA-2 B) TCA-3 C) TCA-4 D) TCA-5 E) TCA-6
The prokaryotic DNA is located in the
A. capsid region. B. nucleoid region. C. endospore region. D. peptidoglycan region. E. pili region.
If a restriction endonuclease cuts a circular DNA three times, how many fragments should there be after the DNA is
subjected to electrophoresis through an agarose gel?
a. 1 b. 2 c. 3 d. 4 e. 5
One goal of pedigree analysis is to determine ____
a. what diseases a family will display b. if two people are related c. gene loci d. whether a gene has a dominant or recessive pattern of inheritance e. what treatment a person should undergo