Which of the following is a serious concern when performing PCR?

A. Restriction enzymes are difficult to obtain in adequate quantities.
B. The high temperature needed may denature the DNA.
C. Lab personnel may be exposed to radiation.
D. PCR is a very time-consuming process.
E. Contaminating DNA may be introduced and amplified.


Answer: E

Biology & Microbiology

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In Drosophila melanogaster, the allele for red eyes is dominant over the allele for purple eyes, and the allele for a gray

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a. 50.0 map units b. 30.0 map units c. 47.0 map units d. 27.0 map units e. 6.0 map units

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What caused the ‘Dust bowl' region in the United States in the 1930s?

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After replication, chromosomes consist of how many molecules of DNA (assuming one chromatid is equal to one molecule of DNA)?

What will be an ideal response?

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In all food chains, the flow of energy is unidirectional from the bottom to the top

Indicate whether the statement is true or false

Biology & Microbiology