Organisms with 23 different chromosome pairs can produce gametes with 8 million possible chromosome combinations, an incredible amount of genetic variation. This
many chromosome combinations in the gametes is possible because of which of the
following?
O thousands of different types of DNA base pairs.
O random separation of chromosomes during meiosis.
O mutations that lead to more chromosomes in the gametes.
O crossing-over that occurs during mitosis.

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects

and after water is usually warmed by the sun the water temperature raises and then evaporates .

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.

cell/ tissue/ organ/ organ system/ body