What types of mutations are the most harmful, and why?
What will be an ideal response?
Base additions or deletions are harmful, as when one base is added or deleted, it throws the entire sequence, and most likely the protein produced from this altered sequence will be nonfunctional. Further, this type of mutation may result in a "stop" codon occurring in an incorrect location. Obviously, chromosomal breakage is deleterious. But a base substitution may not be harmful, particularly if the deletion is in the third base of the triplet, due to redundancy.
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While wading in the warm salt water off the beaches of the Florida Keys on spring break, you stoop down to look at the feathery alga shown here
(a) What pigment gives this organism its coloration? (b) What commercial products are derived from this phylum?
Initial attempts to culture cells demonstrated that blood serum but not blood plasma provided factors that increased the viability and proliferation of the cultured cells
What will be an ideal response?
Plants with seeds inside a fruit
A. produce pollen. B. are angiosperms. C. are flowering plants. D. All of the above are correct.
A single B lymphocyte can recognize multiple antigenic determinants.
Answer the following statement true (T) or false (F)