One of the ways that two species can be compared, and information about the genetic basis of human diseases extracted, is by using their sequenced genomes and
A. looking at the allelic differences.
B. investigating the introns.
C. exchanging genomic information between them.
D. looking at the conserved sequences.
Answer: D
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Sue was monitoring the oil spill into the Gulf of Mexico from an oil tanker. From her observations, she noted that the oil was moving as large patches in the water. It did not appear as though the oil was dissolving into the water. Why did the oil not dissolve into the water?
A. Hydrophobic interactions B. Surface tension C. Sea water acts as a solvent D. Water forms hydration shells E. Water has a high heat of vaporization
What is (are) the function(s) of bacterial pili?
a. organization of the nuclear material b. assisting in protein synthesis c. energy production d. locomotion e. cell membrane construction
The protein globin is composed of how many polypeptide chains?
a. 1 b. 2 c. 3 d. 4 e. 5
What is a disadvantage to having an exoskeleton?
a. Exoskeletons interfere with ingestion. b. Exoskeletons severely limit locomotion. c. Exoskeletons do not prevent desiccation. d. Exoskeletons do not provide adequate protection from predators. e. Exoskeletons must be shed when the animal grows, exposing the animal to predators.