Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.
I'm really sure that the answer is B
Answer: Non coding DNA do not contains instructions for proteins synthesis.
They are needed to
1. determine the point of attachments of transcription factors, and
2,they are also needed to control the transcriptions of genetic code from DNA to mRNA during mechanism of transcription.
Explanation:
i don't understand your question
Na+ ion in sodium chloride is attracted to the oxygen side of the water molecules, while the Cl- ion is attracted to the hydrogens' side of the water molecule
this causes the sodium chloride to split in water, and the sodium chloride dissolves into separate Na+ and Cl- atoms
