Sexual selection occurs when a female chooses a male that _____
a. shares all resources
b. is migratory
c. shows superior strength
d. can be a chameleon
e. has never had a mate
ANSWER: c
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How are open reading frames or exons predicted from genomic sequence?
A) If the open reading frame is at least 10 sense codons long, it is considered an exon. B) If the sequence is absent from mRNA, it is considered an exon. C) If there is a splice donor and accept or site at the ends of the open reading frame, it is considered an exon. D) If an open reading frame is longer than 21 sense codons, it is predicted to be an exon. E) If an enhancer and promoter sequence are present, the downstream sequence is considered an exon.
The process that converts nitrate into nitrogen gas is known as ____
a. denitrification b. nitrification c. nitrogen fixation d. assimilation e. assimilation and nitrification
What is the general ethnic distribution of the sickle-cell gene?
What will be an ideal response?
A sprinter (very fast runner) can rapidly use up its store of ATP energy. How can one obtain ATP quickly?
a. All of these choices are possible b. Through glycolysis and the Kreb's cycle where ATP is produced through substrate phosphorylation. c. Through lactic acid fermentation where the production of ATP is low, but fast. d. rough oxidative phosphorylation where the output of ATP energy is greatest