The best and most correct answer among the choices provided by the question is the fourth choice "<span>Crossing over during metaphase allows segments of DNA from 2 parents to SWAP and produce non-identical haploid cells."</span><span>
</span>Mutations are changes in the DNA. A single mutation can have a large effect, but in many cases, evolutionary change is based on the accumulation of many mutations. Gene<span> flow is any movement of </span>genes<span> from one population to another and is an important source of</span>genetic variation<span>.</span>
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Answer:
97% of the earth water is salt water
I believe the correct word in the blank would be biological. I don't think anything else will fit in, especially when monomers of biological polymers are truly larger and more complex.
It is in your text book .
Check in your text book
Answer:
In animal field studies, why do scientists usually try to work without making the animals aware that the humans are present? It is necessary to observe the animals without disturbing them. When a controlled experiment is not possible, why do scientists try to identify as many relevant variables as possible?
