If chlorophyll a is blocked from absorbing light, what would be the effect on the ability of the plant to do photosynthesis?
A. The plant's ability to carry out photosynthesis will be unchanged, as one of the accessory pigments can fill in for chlorophyll a
B. The plant will have a decreased ability to carry out light-dependent reactions
C. The plant will have an enhanced ability to carry out light-independent reactions
D. The plant will have an enhanced ability to carry out light-dependent reactions
Answer: B
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Transposable elements are
A) segments of DNA that move from one site to another. B) transcribed genes. C) segments of RNA that are involved in transposing DNA into proteins. D) proteins that aid in the secretion of enzymes out of the cell.
Oxidative or fermentative media were set up on an organism suspected of being P. aeruginosa. What results would be expected?
a. Yellow in both tubes b. Green in both tubes c. Yellow in the open tube and green in the closed tube d. Green in the open tube and yellow in the closed tube
Which of the following would most quickly be eliminated by natural selection?
A) a harmful allele in an asexual, haploid population B) a harmful recessive allele in a sexual, diploid population C) a harmful recessive allele in a sexual, polyploid population D) any harmful allele, regardless of the system of inheritance in a population
A chromosome that has been broken and has lost a section has had a/an:
A) duplication. B) aneuploidy. C) deletion. D) translocation. E) inversion.