Answer:
<em>The correct option is B) DNA fragments are negatively charged.</em>
Explanation:
The backbone of the DNA is made up of sugar and phosphates. The phosphates present in the backbone of the DNA are the main reason for the DNA to be negatively charged. The negative charge of the DNA allows different DNA fragments to separate by gel electrophoresis depending on their charge/mass ratio. The smaller DNA fragments will move faster towards the positive end of the gel as compared to the larger fragments and hence they will separate.
Answer:
no
Explanation:
this is because you breeding the species does not stop the life of the species in other areas and the purpose of you breeding it is to notice some of its features in the absence of physical factors
Answer:
When a neural impulse reaches the end of an axon, it causes the tiny oval sacs at the end of the axon to release chemicals called neurotransmitter.
