Crossing over, or recombination, is the exchange of chromosome segments between nonsister chromatids in meiosis. Crossing over creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity.
Hope it helps
<h3><u>Answer and Explanation</u>;</h3>
- Purines: Heterocyclic rings are synthesized one atom at a time, first atom attached to ribose phosphate (source is PRPP) and then all the other atoms are added .
- Pyrimidines: Common intermediate, orotate, synthesized first, then orotate is attached to ribose phosphate (source is PRPP or 5-Phosphoribosyl-1-pyrophosphate).
The blood cells will lyse (burst) because the water is hypotonic to the cells.
________________$$$$$
______________$$____$$
______________$$____$$
______________$$____$$
______________$$____$$
______________$$____$$
__________$$$$$$____$$$$$$
________$$____$$____$$____$$$$
________$$____$$____$$____$$__$$
$$$$$$__$$____$$____$$____$$____$$
$$____$$$$________________$$____$$
$$______$$______________________$$
__$$____$$______________________$$
___$$$__$$______________________$$
____$$__________________________$$
_____$$$________________________$$
______$$______________________$$$
_______$$$____________________$$
________$$____________________$$
_________$$$________________$$$
__________$$________________$$
__________$$$$$$$$$$$$$$$$$$$$
Hello! :)
The eroded material finds its way to the bottom of oceans because of gravity (from... According to the hypsometric curve (plot between elevation and % of earth's surface), only about 29% of Earth's surface is above the mean sea level, rest 71% has an elevation less than mean sea level.
Hope this helped and I hope I answered in time!
~ Destiny ^_^
