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:
1) dominant 2) recessive 3) offspring 4) true 5) lowercase 6) uppercase 7) lowercase 8) black
Gram negative bacteria have significantly thicker walls than gram positive.
This thicker wall doesn't allow a stain to penetrate the bacteria, and are generally regarded as more dangerous.
Gram positive usually have a thinner cell membrane.
I’m sorry i don’t know the answer but i wanted to warn you to NOT click on the link. it supposed to track your location. at least that’s what i heard