Crossing over, or recombination is the exchange of chromosome segments between non sister chromatids in meiosis. Crossing over creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity.
Answer:
5' --> 3'
Explanation:
New nucleotides are added to the hydroxide group on the ribose sugar side. That is the 3' side.
3, definitely. The other answers are all harmful to the environment or flat-out wrong. At least it gets the economy going and lets more people make a living... even if it's hurting the ozone.
The idea that all living things are composed of cells and that all cells come from other cells defines the cell theory.
Hope this helps! :)
Heat from the Sun causes water<span> to evaporate from the surface of lakes and oceans. This turns the liquid </span>water<span> into</span>water<span> vapor in the </span>atmosphere<span>. Plants, too, help </span>water<span> get into the </span>atmosphere<span> through a process called transpiration</span>
