What must generalizations be backed by to be accepted in science?

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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the answer is c most of the fortnite players usually buy v bucks to get the battle pass and other cosmetics but some players who are referred to as "no skins" don't   buy skins and are usually noobs.

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a symbiotic relationship with the mitochondria

the answer is c. it will give up it's valence electron to the other atom.