Answer:
C
Explanation:
Without crossing over, each chromosome would be either maternal or paternal, greatly reducing the number of possible genetic combinations, which would greatly reduce the amount of genetic variation between related individuals and within a species.
Chewing bread, tearing paper, breaking rocks
Protists<span> are a heterogeneous group of living things, comprising those eukaryotes that are neither animals, plants, nor fungi. </span>
The number of bases is no longer divisible by three. This results in a frame-shift, and all codons from the point of mutation will be affected.
1) they allow for multiple reactions in the cell at once for example the mitochondria producing ATP for respiration and The Rough endoplasmic reticulum and ribosomes for protein synthesis
