Sentences with phrase «number of chromosomes into»
Crossovers are essential for segregating the correct number of chromosomes into each gamete.
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As all school - children learn, cells divide using a process called mitosis, which consists of a number of phases during which duplicate copies of the cell's DNA - containing chromosomes are separated into two distinct cells.
During the key step in sperm formation — a division that results in two cells, each with half the original number of chromosomes — the X and Y chromosomes peeled off from the chain one by one and headed into separate cells, all segregating faithfully with their own kind.
If the cells reduce the copy number of this specific chromosome again — say upon another change in environmental conditions — then they turn back into a smooth colony.
But to complete their maturation into sperm, which have half the number of chromosomes of nongerm cells, these PGC - like cells were transplanted back into mouse testes.
After transforming MDS skin cells into iPSCs, the team looked at the number and structure of all 23 pairs of chromosomes inside each cell.