A procedure using both reverse transcriptase and real time PCR can be used to
A. determine the number of copies of a DNA sequence in a sample.
B. determine the number of copies of an RNA sequence in a sample.
C. produce DNA fragments for cDNA cloning.
D. both determine the number of copies of an RNA sequence in a sample and produce fragments for cDNA cloning.
E. produce RNA fragments for cloning.
Answer: D
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The organelle that is compared to a whip is a
a. microfilament. b. basal body. c. microvillus. d. flagellum. e. microtubule.
A range of genotypes and phenotypes occur in polygenic inheritance. Draw a graph that depicts this pattern of continuous variation in polygenic inheritance.
What will be an ideal response?
Crossing over usually contributes to genetic variation by exchanging chromosomal segments between
A) sister chromatids of a chromosome. B) chromatids of nonhomologues. C) nonsister chromatids of homologues. D) nonhomologous loci of the genome. E) autosomes and sex chromosome
The modification of a limb that was used for walking in a preexisting ancestor to one that is used as a wing for a species today is called proteomics.
Answer the following statement true (T) or false (F)