Which of the following is themuscle protein that binds and stores oxygen to maintain aerobic conditions in actively contracting muscle?
A. hemoglobin
B. myoglobin
C. troponin
D. calmodulin
B
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A mutant protein has been designated as G189A. What does this designation reveal about the mutation?
A. That a G nucleotide has been exchanged for an A nucleotide 189 bases from the 5' end of the coding region. B. That a glycine in position 189 of the protein is now an alanine. C. That an A nucleotide has been exchanged for a G nucleotide 189 bases from the 5' end of the coding region. D. That a glycine is now in position 189 of the protein instead of an alanine. E. That a nonsense mutation occurred at position 189 of the protein.
List at least three types of information provided by a karyotype and interpret the chromosomal structural abnormality written as 46,XX,t(18q)
What will be an ideal response?
A distinctive biome called a(n) _____ is found where a freshwater stream or river merges with the ocean
Fill in the blank(s) with the appropriate word(s).
Contractile vacuoles
A) are generally found in protists that inhabit salt water. B) help in the excretion of excess salt. C) prevent cells from bursting as a result of the influx of excess water. D) allow organisms to avoid dehydration by absorbing water from the environment.