When applied to underripe fruit, the hormone ________ hastens ripening.
A. gibberellin
B. ethylene
C. abscisic acid
D. auxin
Answer: B
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Meiosis results in a reassortment of maternal chromosomes (inherited from the mother) and paternal chromosomes (inherited from the father). If n=4 for a given species, and ignoring the effects of crossing over, what is the probability that a gamete will receive only paternal chromosomes?
A. 1/2 B. 1/4 C. 1/8 D. 1/16 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about independent assortment? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The atomic number of this atom (Figure 2.1) is
A. 4. B. 6. C. 10. D. 12. E. cannot be determined from the available information
Which apicomplexan has caused outbreaks, associated with fecal-contaminated imported raspberries, and also fresh greens and drinking water?
A. Toxoplasmosis B. Babesiosis C. Cryptosporidiosis D. Cyclosporiasis E. None of the choices are correct.
A collection of cloned DNA fragments representing an organism's entire genome is called a ________.
A. complementary DNA collection B. transgenic assembly C. genomic library D. clonal anthology