What does the variable 2pq represent?
What will be an ideal response?
the expected frequency of heterozygotes in a population in Hardy-Weinberg equilibrium
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Embryo twinning refers to ________
A) a cloning step that involves enucleation B) a cloning step that involves splitting embryos in half C) a technique used in only primate cloning D) a novel technique not yet employed by scientists E) a cloning step that involves one half of an embryo
Excerpt from Figure 14.8
The accompanying figure represents which chromosomal change?
A. Inversion B. Deletion C. Duplication D. Translocation E. Aneuploidy
A 6.85 kb EcoRI fragment of DNA is shown below. The location of several restriction sites is indicated. Scale is approximate.
If you were to digest this DNA with PstI, which length of DNA fragment would migrate the fastest on an agarose gel?
A. 2622 B. 235 C. 3425 D. 803
A YAC is
a. a vector for cloning genes into yeast cells. b. a Yeast Activating Complex for inducing expression of genes. c. a sequence that allows selection of successfully transformed bacteria. d. a technique for separating DNA fragments according to size. e. a type of DNA polymerase used in PCR.