Gametophyte plants produce
A. spores.
B. eggs.
C. pollen.
D. None of the above is correct.
B. eggs.
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Chromosomes are replicated during the ______ phase.
A. G1 B. G2 C. S D. M E. meta-
The process by which the DNA code is converted from a single gene into a complementary single strand of mRNA is called
A) replication. B) reproduction. C) translation. D) metabolism. E) transcription.
Inserting a gene from the hepatitis B virus into yeast so that the yeast produces a viral protein is an example of
A) etiology. B) genetic engineering. C) immunology. D) microbial genetics. E) gene therapy.
You want to design a DNA probe used for hybridization to isolate a clone from a cDNA library. Which of the following statements about DNA probes is true?
(a) The shorter the DNA probe used to probe the library, the greater the number of colonies to which the probe might hybridize. (b) A DNA probe that contains sequences that span two exons is better suited to the purpose than a DNA probe that only contains sequences from one exon. (c) A DNA probe that contains sequences immediately upstream of the DNA that codes for the first methionine in the open reading frame will usually not hybridize to clones in a cDNA library. (d) Hybridization of a DNA probe to the plasmid of interest will permit the detection of the clone of interest; labeling of the DNA probe is not necessary.