DNA replication occurs prior to every cellular division in order to enable daughter cells have the correct amount of genetic material.

DNA molecules are borne on structures called chromosomes. Hence, when the information of a DNA molecule is duplicated, there is need for another chromosome to harbor the replicate.

Chromosomes containing identical DNA molecules are termed sister chromatids. Sister chromatids are joined together by a centromere.

Therefore, DNA replication is the process that leads to the formation of the two chromatids.

4 0

2 years ago

Maksim231197 [3]

Answer:

11.7 g in 1 L of water.

Explanation:

Molarity (M) or Molar concentration is a measure used in chemistry for solutes in a solution.

It is defined as mol/ L (number of moles per litre).

0,2 M means we have 0,2 mol/ L

In order to know how many grams this means we need to look up the molecular weight of the solute. In this case NaCl: 58.443 g/mol

$\frac{1 mol NaCl}{58.443 g}$ = $\frac{0.2 mol}{X g}$

X= $\frac{(0.2 mol x 58.433 g}{1 mol}$

X= 11.69 g

The solution has 11.69 g of NaCl in 1 L of water since its an adequate polar solvent for NaCl dissolution.

8 0

3 years ago