Ecology
What will be an ideal response?
Study of the abundance and distribution of organisms in relation to other organisms and environmental conditions
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Use the principle of parsimony and molecular genetic data to choose a phylogenetic tree for your hypothesis of how the extant species were derived from the ancestor.
A. Tree 1 requires the most mutations, making it the best choice.
B. Tree 1 requires the fewest mutations, making it the best choice.
C. Tree 2 requires the most mutations, making it the best choice.
D. Tree 2 requires the fewest mutations, making it the best choice.
E. Both trees are equally good because sequences A, B, C, and D are the same in both.
Fragile X syndrome is caused by ____ on the X chromosome in humans
a. the presence of CCG repeats b. mutations within CCG repeats c. deletion of CCG repeats d. overreplication of CCG repeats e. the absence of CCG repeats
_________________________ is the anaerobic breakdown of glucose to pyruvates.
A.) Kreb's cycle B.) electron transport chain C.) glycolysis D.) fermentation
Which of the following is NOT a reason why eukaryotic gene regulation is more complicated than
prokaryotic gene regulation?
a. Eukaryotic DNA is sequestered in the nucleus. b. Eukaryotic DNA is complexed with histones. c. Eukaryotic transcription is completed before translation begins. d. Multicellular eukaryotic organisms produce many different types of cells. e. Eukaryotic regulatory sequences are scattered throughout the genome.