The inner mitochondrial membrane contains numerous inward folds called cristae, which greatly increase the surface area of this membrane. Because ATP is produced on the inner mitochondrial membrane, cristae enhance the ability of the mitochondria to generate ATP. What structure can be thought of as similar to these cristae?
A. Spiracle
B. Finger-like projections of a human's small intestine
C. Bronchiole
D. Cartilage
B. Finger-like projections of a human's small intestine
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Which of the following was first produced commercially using recombinant DNA technology?
A. hepatitis B vaccine B. interleukins C. human insulin D. human growth hormone
Name two factors that will influence the composition of aquatic communities
What will be an ideal response?
Subtelomeres are blocks of homologous DNA sequences close to the ends of chromosomes
In a worldwide population of humans, when sequences of chromosomes 4q and 10q subtelomeres were analyzed only 17 4q and 8 10q haplotypes were found among African, European, and Asian groups. Which of the following might be among the results or conclusions of this analysis? A) finding that few or no interchromosomal exchanges can occur among these chromosomes B) a conclusion that all haplotypes were present before the human population migrated from Africa C) reporting that haplotype polymorphism shows no response to natural selection D) finding greater than 80% variation between homologous ends of chromosomes in humans E) a conclusion that assigning chromosomal origin of repeat arrays by using specific restriction enzymes is possible only in a population with the same ethnic origin
A book is being publicized that purports to provide proof that aliens from another planet brought life to Earth. The proof they show are strange fossils of multicellular organisms that look like no animal you have ever seen
What group actually includes these "aliens"? A) organisms with adaptive radiation B) the Ediacaran fauna C) ancient archaea D) endosymbiotic organisms