A reciprocal exchange in which two DNA molecules with the same nucleotide sequence break and rejoin in a crossover is called ________ recombination.
A. replicative
B. homologous
C. site-specific
D. None of the choices are correct.
Answer: B
You might also like to view...
In which of the following properties are the archaea more like eukaryotes than the bacteria?
A) size B) microtubules and microfilaments C) translation initiation D) mode of cell division E) both translation initiation and mode of cell division
In the 1970s, many logging companies employed a method of harvesting trees called clear cutting, in which all trees were cut down and most plant life destroyed in the harvest area. Environmentalists worked with some of these companies to change their process, and by the 1990s a different method called selective harvesting was used. In selective harvesting, only specific trees were cut down, which resulted in significantly less damage to the surrounding area. In changing their process, these companies ensured that the environment produced more usable product over time. Which of the following statements is an economic benefit of this change in process?
A) Logging companies can harvest from the same locations more than once over a ten-year time span. B) The change in process will cause an increase resources needed to harvest a given section of forest. C) The change in process will result in decreased habitat loss in the area, causing only small changes in populations. D) The population will change due to loss of habitat in a harvested area
As a plant cell grows a new cell wall the secondary wall forms
A. outside of the primary cell wall. B. in the middle lamella C. between the primary cell wall and plasma membrane. D. in the cytoplasm E. inside of the plasma membrane.
Place the following structures in the appropriate category based on their location in a cell.