The wild-type pUC19 plasmid (blue plasmid) contains genes for
a. antibiotic resistance.
b. activation of ?-galactosidase production.
c. both a and b.
d. none of these choices.
a
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Animals that reproduce sexually and have both male and female organs are known as __________. Fill in the blank(s) with the appropriate word(s)
There are an estimated __________ number of
bacteria alive today. a. 5 x 1030 b. 5 billion c. 50 million d. 5 trillion e. none of these
Select the correct sequence of animal developmental
events. a. fertilization >>> cleavage >>> gastrula >>> blastula b. fertilization >>> cleavage >>> blastula >>> gastrula c. fertilization >>> blastula >>> cleavage >>> gastrula d. fertilization >>> gastrula >>> blastula >>> cleavage e. fertilization >>> blastula >>> gastrula >>> cleavage
Which of the following represents the possible genotype(s) resulting from a cross between an individual homozygous
for black hair (BB) and an individual homozygous for blonde hair (bb)? a. BB and Bb b. BB, Bb, and bb c. BB only
d. Bb only e. bb only