The smallest known infectious agents containing RNA or DNA are ________.
Fill in the blank(s) with the appropriate word(s).
Answer: viruses
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How many chromosomes did you inherit from your father?
A. 23 B. 2 C. 46 D. 92
Aquaporins are
A) water transport proteins. B) molecules that prevent water from crossing a membrane. C) enzymes involved in the generation of water within cells. D) cations bound to water molecules.
Are all point mutations SNPs?
A. Yes, because SNPs are single base pair changes of the DNA. B. Yes, because SNPs are random in their occurrence. C. No, because SNPs require a certain frequency in the population. D. No, because SNPs are mismatched base pairs.
Which observations illustrate shared ancestry by anatomical comparison studies? Check all that apply.A) The same structure has evolved to carry out different functions.B) Different structures evolve in similar ways when subjected to the same selective pressures.C) A structure becomes vestigial.D) Features are similar during embryonic development.
What will be an ideal response?