Which animal makes human interleukin-2, a protein that triggers immune cells to divide and is being used as a cancer

drug?



a. cows

b. sheep
c. mice
d. goats
e. rabbits


ANSWER: a

Biology & Microbiology

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Diseases that can be transmitted from one person to another are termed

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What was the significance of the 1978 finding by Philip Leder's research group that the 0.7 kb ?-globin mRNA is not colinear with the gene that encodes it, but the nuclear 1.5 kb pre-mRNA is?

What will be an ideal response?

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With respect to her sex chromosomes, Amanda would be designated as ______________

Amanda's parents realized that her body was not developing properly about the time she was 12 years old. She was shorter than most of her friends and was not going through changes normally associated with female puberty. They took her to a doctor who initially diagnosed Amanda with Turner Syndrome because of her physical features. He ordered a karyotype that confirmed his diagnosis. Amanda was born with only one X chromosome. Although there is no specific cure, the doctor was able to treat her and correct some of the problems associated with the condition. For example, she received growth hormone to improve her growth and estrogen to help her develop the physical changes of puberty. A) XX B) XYY C) XO D) XOY

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What fraction of medical prescriptions filled in the United States are drugs extracted directly from flowering plants?

A) none B) one-tenth C) one-quarter D) one-half E) all

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