Photosynthesis is crucial for life on this planet, if photosynthesis did not happen the glucose on this planet would be used up quickly ,leaving no energy in a usable form; therefore ending life on this planet.
Crossing over produces modern combinations of alleles. Not unused alleles but unused combinations which can result in modern phenotypes or expanded assortment of phenotypes. This way the there's expanded genotype/phenotype variety but the genuine qualities are still the same ones.
Answer:
Phenotype
Genotype
Explanation:
Phenotype is the physical appearance because it's the outward expression of the person, which is determined by one's Genotype.
All of the above is the answer
They are rare, but can significantly increase genetic diversity when reproductive rates are high<span>
</span>
