Reverse transcriptase catalyzes the production of _____ from ____
a. double-stranded cDNA; single-stranded mRNA
b. double-stranded mRNA; single-stranded cDNA
c. single-stranded cDNA; single-stranded mRNA
d. single-stranded mRNA; single-stranded cDNA
e. double-stranded cDNA; double-stranded mRNA
c
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What is false about decapods?
a. first walking legs are usually modified. b. eyes are compound. c. they have only one pair of antennae. d. mandibles are used to crush food. e. sexes are usually separate.
Which process(es) can generate recombinant gametes? (Select all that apply.)
A) crossing-over between two linked heterozygous loci B) independent assortment of two unlinked heterozygous loci C) segregation of alleles in a homozygote D) crossing-over between two linked homozygous loci
Which of the following generally causes stomata to open?
a. release of abscisic acid by the roots b. a drop in CO2 concentration in leaf air spaces c. exposure to red light d. a drop in O2 concentration in leaf air spaces e. an increase in CO2 concentration in the leaf air spaces
Viruses that infect bacteria are:
a. Not known to exist b. Prions c. Bacteriophages d. Composed of protein only e. Also capable of causing disease in humans