Which is a correct association of mitochondrion structure and phase of cellular respiration?
A. cristae-glycolysis
B. matrix-citric acid cycle
C. matrix-glycolysis
D. matrix-electron transport chain
E. cristae-preparatory reaction
Answer: B
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Albinism is a recessive disorder in which the skin and hair fail to produce pigment. The following question(s) ask you to evaluate the pedigree chart shown here in which "N" is the allele for normal pigmentation and "n" is the allele for albinism. The shaded circles for Deirdre and Shannon represent the only individuals expressing the disorder.
What was the probability that Deirdre and Geoff's first child would express the albino trait?
A. 1/2 B. 3/4 C. 1/8 D. 1/4
The most common sexually transmitted disease in the United States is caused by:
A) Candida albicans. B) Chlamydia trachomatis. C) Neisseria gonorrhoeae. D) Trichomonas vaginalis.
A group of scientists that are studying the spread of Lyme disease suspect that it is spreading north due to movement of the tick vector brought about by climate change. What application(s) below would assist with this study?
A. Geographic information systems B. Remote sensing and geographic information systems C. DNA microarrays D. Remote sensing E. DNA fingerprinting
The average molecular weight of the 20 standard amino acids is 138, but biochemists use 110 when estimating the number of amino acids in a protein of known molecular weight. Why?
A) The number 110 is based on the fact that the average molecular weight of a protein is 110,000 with an average of 1,000 amino acids. B) The number 110 reflects the higher proportion of small amino acids in proteins, as well as the loss of water when the peptide bond forms. C) The number 110 reflects the number of amino acids found in the typical small protein, and only small proteins have their molecular weight estimated this way. D) The number 110 takes into account the relatively small size of nonstandard amino acids. E) The number 138 represents the molecular weight of conjugated amino acids.