An inherited skeletal disorder associated with defective collagen in bone tissue is

a. osteogenesis imperfecta.
b. rheumatoid arthritis.
c. osteoarthritis.
d. osteosarcoma.
e. osteochondritis.


A

Biology & Microbiology

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The protein located in muscle cells that delivers oxygen directly to the mitochondria is

A. Hemoglobin B. Myoglobin C. Thyroxin D. Phytic acid

Biology & Microbiology

When comparing the gene coding for cytochrome c in several species, it was noted that humans and

chimpanzees share the identical amino acid sequence with a change in only one location. This means that a. humans and chimpanzees can mate and produce viable offspring. b. humans evolved from chimpanzees. c. over time, chimpanzees will eventually evolve into primitive humans. d. humans and chimpanzees are closely related in evolutionary time. e. there is nothing particularly informative about this discovery.

Biology & Microbiology

Laterization is a soil-forming process that is typical of cool, moist climates at high latitudes

Indicate whether the statement is true or false

Biology & Microbiology

Messenger RNAs containing premature stop codons are destroyed by the mechanism of

A) nonstop decay. B) directed RNase activity. C) nonsense-mediated decay. D) error-mediated repair. E) None of these mechanisms.

Biology & Microbiology