An organism’s DNA starts off in one lonely cell containing the germline DNA passed down from the previous generation. Through many rounds of cell division, new somatic cells emerge that contain ...

Therefore, sex could not be determined in a universal way by the number of chromosomes in organisms' regular somatic cells. But how did these chromosome counts in somatic cells relate to the ...

Consequently, all of the somatic cells in human females contain two ... In fact, sex determination can be very different between different organisms. For example, in the XX-XO system found in ...

In multicellular organisms, how do multiple cell types originate from ... After a flurry of cell divisions from the starting “germ cell” (i.e. united egg and sperm), somatic cells begin to exit the ...

Therapeutic cloning, also known as embryo cloning or somatic cell nuclear transfer (SCNT), involves creating ... the risk of developmental abnormalities in cloned organisms, and the moral status of ...

We're all very complex organisms, made up of lots of different types of cells carrying out different jobs in our bodies; such as nerve cells, blood cells, fat cells and muscle cells. So ...