In a double-helix DNA strand, the adenine on one strand forms a hydrogen bond with a(n) ____ on the other strand
A. adenine
B. guanine
C. thymine
D. cytosine
C
Biology & Microbiology
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Individuals from different subspecies usually interbreed where their geographic distributions meet
Indicate whether the statement is true or false.
Biology & Microbiology
The reproductive system is the only system that contributes to homeostasis
1.True 2.False
Biology & Microbiology
Multigene families are
a) usually clustered at the telomeres. b) identical or similar genes that have evolved by gene duplication. c) groups of enhancers that control transcription. d) sets of genes that are coordinately controlled. e) equivalent to the operons of prokaryotes.
Biology & Microbiology
A typical breath at rest moves about 0.5 liters of air, which is referred to as the ________ volume.
A. tidal B. residual C. exhaled D. resting
Biology & Microbiology