The amount of light at any depth in the canopy is affected by the number of ________ above
Fill in the blank(s) with correct word
leaves
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The branched intermediates generated by recombination can be resolved in a number of ways. Which of the following is true of branched intermediates and their resolution?
A. Resolution of the branched intermediate can occur by dissociation of the invading strands and reannealing with their original complements. Gaps are filled in by DNA polymerase and the DNA is sealed by ligase. This is known as synthesis-dependent strand annealing (SDSA). B. Resolution of the branched intermediate can proceed by double-strand break repair. Replication is completed by ligating the strands while they are still linked. Cleaving and rejoining the homologues can result in the original pair of chromosomes. C. Resolution of the branched intermediate can proceed by double-strand break repair. Replication is completed by ligating the strands while they are still linked. Cleaving and rejoining the homologues can result in crossing over between the chromosomes. D. Ligation of the branched intermediate formed by strand invasion results in two four-armed junctions called Holliday intermediates or junctions. E. All of the choices given are correct.
Which of the following proteins is observed exclusively in association with prokaryotic DNA replication?
A) DNA polymerase I B) primase C) helicase D) single-strand binding proteins E) telomerase
The shape of the virus is determined by its
A. nucleic acid. B. capsid. C. envelope. D. tail.
According to the fluid-mosaic model of the plasma membrane, a lipid bilayer is _____ and has the consistency of ______.
Fill in the blank(s) with the appropriate word(s).