Based on the figure from the section on HIV replication, why could researchers use PCR to amplify viral DNA from the chimp Marilyn's tissues?
A. PCR can amplify any genetic material.
B. HIV uses DNA as its genetic material.
C. PCR uses a reverse transcriptase and can thus detect RNA.
D. HIV is converted to DNA and integrated into a cell's chromosome.
E. Some of the HIV will be stuck to the outside of a cell.
D. HIV is converted to DNA and integrated into a cell's chromosome.
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Which portion of the photosynthetic apparatus absorbs light?
A. photosystem I B. photosystem II C. NADP reductase D. both photosystem I and photosystem II E. both photosystem I and NADP reductase
Which biome is home to almost half of the world's species?
a. savanna b. coniferous forest c. tropical rain forest d. temperate forest e. desert
Two organisms, AABBCCDDEE and aabbccddee, are mated to produce an F1 that is self-fertilized. If the capital letters represent dominant, independently assorting alleles. What proportion of the F2 genotypes will be recessive for all five loci?
A) 1/16 B) 1/1024 C) 1/64 D) 1/256 E) 1/243
In flatworms, protonephridia branch throughout the body into bulblike ________.
Fill in the blank(s) with the appropriate word(s).