Because the chromatin condenses into compacted chromosomes.
<span>During mitosis, chromatin condenses starting from the prophase to the end of cell division. Condensation of chromatin protects the DNA during cell division and facilitate its mobility and transport. </span>
DNA fragments are cut out restriction enzymes (restriction endonucleases) and then joined together using enzymes called DNA ligases.
<span>Restriction enzymes are enzymes which recognize target sequences (recognition sites) and cuts DNA at or near those sequences.</span>
DNA ligase is an enzyme that connects the gap between the molecules (if they have matching ends).
A crevice is a narrow opening resulting from a split or a crack. <span />
uterus It passes through the fallopian tube into the uterus, where it attaches to the uterine wall. The placenta, which will nourish the baby, also starts to form.
