In eukaryotes, DNA exist as a double helix and it is coiled whereby in Prokaryotes, it is a simple circular loop. DNA is coiled into chromosomes for several reasons. Some of these include:
1) <span>For easier transportation
2) For easier separation during cell division
3) Coiled around histone proteins subunits (this does not exist in prokaryotes), which together with DNA forms nucleosome
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Answer:
All but B are primary symptoms of lead exposure in children and infants
Explanation:
Answer:
Cows produce milk.
Explanation:
Artificial selections are intentional breeding or the producing of plants or animals.