The optimal way to detect PCR amplicons is to use which stain?
a. Methylene blue
b. Malachite green
c. Bromothymol blue
d. Ethidium bromide
D
The nucleic acid bands in the agarose gel are stained with the fluorescent dye, ethidium bromide, which allows them to be visualized on exposure to ultraviolet (UV) light.
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Which of the following does NOT represent a form of parental investment?
A. a spermatophore containing nutrients eaten by a female insect B. a male fish mouthbrooding eggs abandoned by a female C. a copulatory plug deposited in the reproductive tract of a female mouse D. a female bird incubating externally-laid eggs E. all of the above represent a form of parental investment
©McGraw-Hill EducationBased on the phylogeny shown, indicate the groups that are monophyletic (Select all that apply).
A. rose and oak B. Psaronius, fern, pine, ginkgo, oak, and rose C. fern, pine, and ginkgo D. pine, ginkgo, oak, and rose
In plants, hormones are produced in endocrine glands.
Answer the following statement true (T) or false (F)
Which of the following would be found as part of a plant cell but not an animal cell?
A) cytoskeleton B) gap junction C) ribosomes D) chloroplasts