Which of the following methods of DNA repair involves enzymes that recognize and correct nucleotide errors in unmethylated strands of DNA?
a. Light repair of T dimers
b. Dark repair of P dimers
c. Mismatch repair
d. SOS response
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Which of the following methods of DNA repair involves enzymes that recognize and correct nucleotide errors in unmethylated strands of DNA?
a. Light repair of T dimers
b. Dark repair of P dimers
c. Mismatch repair
d. SOS response
Which of the following is not a mechanism of genetic transfer between cells?
a. Transduction
b. Transformation
c. Transcription
d. Conjugation
Explain the central dogma of genetics.
__________ are nucleotide sequences containing palindromes and genes for proteins that cut DNA strands.
The Ames test ___________.
a. uses auxotrophs and liver extract to reveal mutagens
b. s time intensive and costly
c. involves the isolation of a mutant by eliminating wild-type phenotypes with specific media
d. proves that suspected chemicals are carcinogenic
Describe how DNA is packaged in both prokaryotes and eukaryotes.