Single nucleotide polymorphisms (snps) are useful in epidemiology because:
a. it is a laboratory technique that permits manipulation of dna to determine gene function
b. their presence is evidence of a defect in dna replication, and therefore proof that a given disease is present
c. they may be located within or in close proximity to a gene, and may therefore serve in identifying carriers of a characteristic (including a genetic defect)
d. it is an approach to determine the location of a given gene, therefore speeding identification of the mechanism of the disease and confirming carriers of the defect

b. Their presence is evidence of a defect in DNA replication, and therefore proof that a given disease is present

Explanation:

Single nucleotide polymorphisms (SNPs) result from point mutations and correspond to the position where there is alternation of nucleotides A, C, G, T at a minimum allele frequency of 1% in a given population. SNPs can be present in both coding and non-coding regions of the genome. As a nucleotide alternation is the result of a defect in DNA replication and these defects cause syndromes and diseases; we can say that single nucleotide polymorphisms are evidence of a defect in DNA replication and therefore proof that a particular disease is present.

compost can be added to topsoil as a:

pesticide

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.