There are now four daughter cells — two from each of the two cells that entered meiosis II — and each daughter cell has half the normal number of chromosomes (Figure 7). Each also contains new ...

Figure 2c shows portions of the karyotype in which translocation chromosomes were placed next to their normal homologues. At least 30 rearrangements were observed in this cell, and some of the ...

Preliminary results of chromosome studies on cultured umbilical-cord-blood leukocytes from a consecutive series of 2159 infants born during a year indicated that gross chromosome abnormalities ...

Save guides, add subjects and pick up where you left off with your BBC account. All eggs contain one X chromosome. Half of sperm contain one X chromosome and half contain one Y chromosome.

Instead of having two copies of each chromosome, as is typical for normal cells, the cancer cells had anywhere from one to as many as five or six copies; and sometimes there were parts of chromosomes ...