Which genetic condition has an X-linked recessive inheritance pattern?
a. Duchenne muscular dystrophy
b. phenylketonuria
c. achondroplasia
d. sickle-cell anemia
e. cystic fibrosis
ANSWER: a
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Fungi are able to handle acidic environments much better than bacteria
Indicate whether this statement is TRUE or FALSE.
According to Oparin and Haldane, the prebiotic soup accumulated because molecules were not ____
a. broken down by oxygen attack or microbial decay b. broken down by reduction reactions or fungal decay c. broken down by oxygen attack or fungal decay d. broken down by reduction reactions or microbial decay e. recycled by environmental conditions
Who created the first chromosome map?
a. Gregor Mendel b. Frans Janssen c. Alfred Sturtevant d. Thomas Hunt Morgan
Which of the following is released by cells lining blood vessels and causes a decrease in blood
pressure? a. histamine b. acetylcholine c. cyclic AMP d. nitric oxide e. prostaglandin