Many diseases, cancers, and even normal human variations can be caused by mutations and variations in the DNA nucleotide sequence. The most likely immediate result of DNA having a different nucleotide sequence is that
A. the protein resulting from the DNA mutation would be denatured and nonfunctional.
B. the peptide bonds in the protein would by hydrolyzed and the protein would fall apart.
C. no direct result of change in the protein molecule would occur if DNA is mutated.
D. the polypeptide of a protein would be altered.
E. the ability for the cell to make proteins would fail.
D. the polypeptide of a protein would be altered.
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An endocrine axis describes:
A. a hormonal signaling pathway between endocrine glands and tissues. B. the direction of hormone transport within the body. C. the molecule that forms the backbone of a hormone. D. the signal transduction cascade that occurs when a hormone binds to a receptor. E. the pattern of genes that are expressed in response to a hormone.
A certain disorder appears to be inherited from mother to child. What are two possible modes of
inheritance for this disorder?
What will be an ideal response?Which of the following best describes the endosymbiotic theory?
a. Aerobic respiration is more efficient than anaerobic respiration. b. Prokaryotes evolved to live side by side with eukaryotes. c. Eukaryotes are the result of one prokaryotic cell engulfing another. d. Mitochondria can only live inside a eukaryotic cell.
Which physician is first associated with vaccination?
A) Ehrlich B) Jenner C) Lister D) Koch E) Escherich