A biome that is characterized by an annual rainfall of 10 inches or less is called a ________
Fill in the blank(s) with correct word
desert
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The linear DNA fragments taken up from disrupted infective cells recombine with the chromosomal
DNA of the noninfective cells by ____, much in the same way as genetic recombination takes place in conjugation.
a. meiosis b. metaphase II c. nuclear division d. double crossovers e. transformation
A tar-like patch found in the upper North Atlantic supra-intertidal usually is:
a. a lichen. b. a cyanobacteria. c. sea hair. d. a sponge. e. a seaweed.
Restriction (enzymes/proteases/polymerases), first isolated from bacterial cells, cut DNA molecules at specific sites.
Fill in the blank(s) with the appropriate word(s).
A poison added to an in vitro translation mixture containing mRNA molecules with the sequence 5?-AUGAAAAAAAAAAAAUAA-3? has the following effect:
the only product made is a Met-Lys dipeptide that remains attached to the ribosome. What is the most likely way in which the poison acts to inhibit protein synthesis? (a) It inhibits peptidyl transferase activity. (b) It inhibits movement of the small subunit relative to the large subunit. (c) It inhibits release factor. (d) It mimics release factor.