Use the principle of parsimony and molecular genetic data to choose a phylogenetic tree for your hypothesis of how the species were derived from the ancestor.
A. Tree 1 requires the most mutations therefore it would be the best choice.
B. Tree 2 requires 4 mutations while Tree 1 requires 6 mutations therefore Tree 2 would be the best choice.
C. Tree 2 requires the least mutations, therefore it would be the best choice.
D. Tree 2 requires 5 mutations while Tree 1 requires 7 mutations therefore Tree 2, with the least mutations, would be the best choice.
E. Tree 1 requires 7 mutations and Tree 2 requires 4 mutations, therefore Tree 2 would be the best choice.
D. Tree 2 requires 5 mutations while Tree 1 requires 7 mutations therefore Tree 2, with the least mutations, would be the best choice.
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The RNA World hypothesis isdirectly supported by all the following except:
A. catalytic RNAs. B. ribozymes showing diverse function. C. ribosome structure. D. micelle to vesicle formation.
The linear DNA fragments taken up from disrupted infective cells recombine with the chromosomal
DNA of the noninfective cells by ____, much in the same way as genetic recombination takes place in conjugation.
a. meiosis b. metaphase II c. nuclear division d. double crossovers e. transformation
When the oocyte is released from the ovary, it is transported to the uterus through the
A) fimbriae. B) flagella. C) oviduct. D) ductus deferens. E) endometrium.
What symptoms indicate that the auditory tube is blocked?
What will be an ideal response?