What is the most common chromosomal abnormality conceived?
A. Down syndrome
B. Turner syndrome
C. Edward syndrome
D. Klinefelter syndrome
B) turner syndrome
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Eukaryotic polymerases interact with which protein that acts as the sliding clamp in eukaryotic DNA replication?
What will be an ideal response?
Upon examination, a person is found to only have half the normal number of LDL-cholesterol receptors. Which of the following best explains this?
A. pleiotropic inheritance B. incomplete dominance C. X-linked inheritance D. polygenic inheritance
Which phrase describes the selective permeability of a membrane?
a. the ability of a molecule to pass through a membrane b. the ability of only certain molecules to pass across a membrane c. the need for carrier proteins to transport certain molecules
Imagine a population of monkeys in South America whose habitat has been reduced to the point where only 25 monkeys survive. This is an example of:
A) population bottleneck. B) natural selection. C) founder effect. D) genetic drift.