用“chromosomes”造句大全，chromosomes造句

The first stage of mitosis, during which the chromosomes condense and become visible, the nuclear membrane breaks down, and the spindle apparatus forms at opposite poles of the cell.

If one of our chromosomes was formed by the fusion of two primate chromosomes, you know what it would have?

Dr Campbell said: "The cell should say 'that's it', and give up, but instead it tried to piece the chromosomes back together like a valuable piece of porcelain.

And they found that the plants that bounce back after clipping boost their DNA content-some of their cells go from having 10 chromosomes to having 320.

To check an egg for chromosomal abnormalities, doctors use a laser to make a small incision in the outer membrane, which allows them to extract the polar body and the chromosomes it contains.

Having the wrong number of chromosomes can cause an embryo to miscarry, or lead to serious medical conditions such as Down's syndrome.

The G-bands at late prophase, prometaphase and metaphase chromosomes have been induced, and the number of G-bands of a cultivar decreases gradually from late prophase to metaphase.

So its progeny have double the normal amount of chromosomes, which they randomly toss off till they're near the right number again.

The technique allows doctors to screen fresh eggs for abnormal chromosomes, which are a major cause of miscarriage.

This flexibility has benefits, but it also has a drawback: the parasites have to keep track of their chromosomes…even as they change their minds about how and when to divvy them up.

Is it possible that a pair of chromosomes just got lost in our lineage?