Crossing-over ____
a. only takes place towards the middle of chromatids
b. can only occur once for each non-sister chromatid
c. can only occur once for each homologous chromosome pair
d. only takes place between sister chromatids
e. can occur at multiple sites in each set of paired chromosomes
ANSWER: e
You might also like to view...
Plants lacking well-developed conducting systems such as mosses, liverworts, and hornworts have been called
A. gametophytes. B. sporophytes. C. angiosperms. D. gymnosperms. E. bryophytes.
The best way to reclaim an ecosystem that is extensively damaged is to ____
a. allow natural succession to take over b. remove all predators from the area c. seed the area with a type of grass d. bring in beneficial insects e. implement ecological restoration
The efficient exchange of gases in gills is an example of countercurrent exchange. Indicate whether the statement is true or false
Speculate as to why the success rate of treatment is much higher for testicular and prostate cancers than for ovarian cancer
What will be an ideal response?