A mutation is present in the family shown in the pedigree above that alters the function of a growth factor. Which of the following could be true?
What will be an ideal response?
M is heterozygous.
Daughter 6 is homozygous.
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Bacteria that are able to grow in humans and cause disease have likely evolved to be
A) psychrophiles. B) mesophiles. C) thermophiles. D) hyperthermophiles.
The material in the gray crescent of a frog embryo is necessary for normal development
a. True b. False
An imbalance of heat received versus heat leaving the earth can lead to:
a. global warming. b. global cooling. c. temperature inversion. d. Both a and b. e. Both b and c.
A NASA probe returned samples of rocks from the surface of Mars. From these rocks, a prokaryotic organism was isolated and remained viable under conditions similar to those of Mars
The organisms are capable of dividing to replicate themselves. In order to determine whether the DNA replication of these organisms was semiconservative, an experiment using N15/N14 (similar to that of Meselson and Stahl) was performed. If the method of DNA replication were conservative, after one generation one would expect to see A) all of the DNA in the heavy (N15) band. B) all of the DNA in the light (N14) band. C) all of the DNA at a point midway between the heavy and light bands. D) half of the DNA in the light band, the other half in the heavy band. E) None of these are correct.