In pea plants, tall plants are dominant over short, and green pods are dominant over yellow
If you crossed true-breeding tall, green-podded plants with true-breeding short, yellow-podded plants, and then crossed the F1 individuals among themselves, what proportion of the F2 offspring would you expect to be tall and yellow-podded?
A) 3/16 B) 9/16 C) 1/16 D) 1/4 E) 3/4
A
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Which of the following statements DOES NOT support the hypothesis that neoteny contributed to the evolution of modern humans from our common ancestor with chimpanzees?
A. Juvenile Great Apes have large heads (relative to body size) and are less hairy than adult Great Apes. B. Neoteny involves changes in the developmental timing of gene regulation, consistent with the observation that the genome sequence of human and chimp are 99% identical. C. It has been suggested that the human mentality, characterized by questioning and playfulness, are characteristics of juvenile Great Apes. D. Sexual maturity occurs earlier in Great Apes than in humans.
In C4 plants, the Calvin cycle is carried out in _________________; CO2 is captured and processed during the C4 cycle in ______________
A. the day; the night B. mesophyll cells; bundle-sheath cells C. bundle-sheath cells; mesophyll cells D. the night; the day
Mitotic cell division results in two identical cells by replicating the cell's DNA and then dividing .
A. None of the answer choices is correct. B. once; once C. twice; twice D. twice; once E. once; twice
In the process of blood clotting, which of the
following do platelets do?
a. engulf and digest cellular debris b. release substances that repel more platelets c. convert fibrin into fibrinogen d. clump together e. platelets do all of these