A probe can help to find a sequence of interest in a genomic library because ________
a. the probe ruptures the cells and releases their DNA
b. some of the cells from each colony will bind to the probe
c. the sequence of interest is radioactive and will darken X-ray film
d. the probe is labeled and will hybridize to the sequence
d
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Which of the following genera of the Planctomycetales have a stalk as part of their mechanism for attachment to surfaces?
A. Planctomyces B. Priullela C. Gemmata D. All of the choices are correct.
This material provides a mechanism for the maintenance of normal human skin that prevents drying and also is involved in the production of an acid pH to prevent the colonization of poten-tially pathogenic organisms
a. sweat b. bacterocins c. antibodies d. sebum
An ECG measures ________.
Fill in the blank(s) with the appropriate word(s).
Plants do not have a germ line and gametes are derived from cell lines that are also responsible for the growth of the organism. Can you apply the disposable soma hypothesis?
a. Yes, trade-offs between reproduction and repair are still conceivable. b. Yes, plants have a much higher physiological tolerance for the effects of mutations. c. No, the distinction between somatic cells and germ line is at the heart of the hypothesis. d. No, plants do not produce eggs or sperm but gametophytes that represent an additional genera-tion.