Gene therapy in humans has been used to treat
A. inborn errors of metabolism.
B. cancer.
C. cystic fibrosis.
D. All of the answer choices.
E. Only two of the answer choices.
Answer: D
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What is the key concept addressed by the question?
What will be an ideal response?
Why are the predator and prey growth curves out of phase? a. Because both predator and prey are responding to changes in the previousgeneration of the other population
b. Because neither population can respond instantly to changes in the otherpopulation. c. Because reproductive cycles in either population cause a delay in response tothe other population. d. All of the above.
An ?OH group is a(n) ____ group
a. carboxyl b. hydroxyl c. amino d. methyl e. carbonyl
The following coat colors are known to be determined by alleles at one locus in horses:
palomino = golden coat with lighter mane and tail cremello = almost white chestnut = brown The following table gives ratios obtained in matings of the above varieties: Cross Parents Offspring 1 cremello x cremello all cremello 2 chestnut x chestnut all chestnut 3 cremello x chestnut all palomino 4 palomino x palomino 1/4 = chestnut 1/2 = palomino 1/4 cremello Assign gene symbols for the genetic control of coat color on the basis of these data. A) C1C1 = cremello, C2C2 = chestnut, C1C2 = palomino B) C1C1 = chestnut, C2C2 = palomino, C1C2 = cremello C) C1C1 = palomino, C2C2 = chestnut, C1C2 = cremello D) C1C1 = palomino, C2C2 = cremello, C1C2 = chestnut E) C1C1 = chestnut, C2C2 = cremello, C1C2 = palomino