Which of the following is NOT included in the definition of a phenotype?
a. chemicals an individual produces, such as in digesting lactose
b. features visible to the naked eye, i.e. height
c. all the genes an individual carries
d. certain behaviors an individual exhibits
e. outward appearance
Ans: c. all the genes an individual carries
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Identify the primary functions of the muscles that form the rotator cuff.
In a marsh community, aquatic plankton contain 0.04 ppm of DDT, small fish contain 0.30 ppm of DDT, larger fish contain 1.5 ppm of DDT, and cormorants (fish-eating birds) contain 24 ppm of DDT. This is an example of
A. the carbon cycle. B. succession. C. nutrient cycling. D. biomagnification.
In transcription, the base thymine in DNA will pair opposite the base ____ in mRNA.
A. uracil B. guanine C. cytosine D. adenine
The polymerase chain reaction (PCR) is a lab technique which ultimately results in which of the following?
a) the ability to transfer genes using plasmids b) a large clone library c) the isolation of a particular gene from a donor species d) the use of a radioactive probe to isolate a gene from a gene library e) duplication of a small strand of DNA into billions of copies