Enzymes used to cut genes in recombinant
DNA research are
a. ligases.
b. restriction enzymes.
c. transcriptases.
d. DNA polymerases.
e. replicases
B
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Fragile sites are chromosome locations that
A. show an increased number of chromosome bands. B. show a decreased number of chromosome bands. C. are all associated with a specific defective phenotype. D. indicate that carriers are mentally retarded. E. are inherited in a codominant fashion.
Explain how a polar molecule, such as water, can have a difference in electrical charge but is also electrically neutral
What will be an ideal response?
Suppose a DNA fingerprinting analysis reveals that DNA from a crime scene matches a suspect’s DNA at four out of
five different loci. What can be concluded from this information?
What will be an ideal response?Which plants keep their stomata open only at night?
A. All plants leave their stomata open only at night. B. C4 C. CAM D. All plants leave their stomata open only in the daytime. E. C3