Alternatively, packing of sperm chromatin may serve to reprogram the paternal genome so that the appropriate genes from the father's chromosomes are expressed in the early embryo. Whereas most ...

Homologous chromosome pairing is a process where maternal and paternal chromosomes of the same type are aligned, resulting in a partial exchange of genetic information through meiotic recombination.

Of these, five showed that the rearranged chromosome was of paternal origin. For two cases the duplication arose through an intrachromosomal event. In four of six cases, the recombination ...

The Y chromosome is the keeper of family history on the male side. Written in the letters of DNA, it carries a record of a man's paternal ancestors. Here is your chance to try your hand at being a ...

Created with Sketch. Angelman syndrome is caused by an over-expression of paternal imprinted genes and an under-expression of maternal ones on chromosome 15. Children with this genetic disorder ...

And so the Y chromosome travels from father to son with ... male line going back through time exists—as clear a marker of paternal heritage as a father's family name. A tangible timekeeper ...

However, there is some evidence that the Y chromosome is being phased out of the evolutionary pipeline, and could one day disappear altogether — potentially giving rise to a new sex gene in the ...

the second X is "silenced," leaving only the maternal or paternal X switched on. This is not a seamless process. Some genes on the silenced X chromosome escape that silencing process, and thus ...

Until now, it was thought that the usage of maternal and paternal X-chromosomes was similar ... cells expressing either one ...