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Maternal

Maternal

Relating to or derived from the mother.

Origin: L. Maternus, fr. Mater, mother


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Re: Chromatin

Before replication there were 23 pairs of molecules, 23 of maternal origin and 23 of paternal origin, plus the maternally-contributed mitochondrial chromosome (which I'll ignore for the rest of this post). Counting chromosomal centromeres, there are 46 ...

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by jonmoulton
Thu Sep 04, 2014 3:04 pm
 
Forum: Genetics
Topic: Chromatin
Replies: 2
Views: 883

Gene knockdowns in the wasp Nasonia vitripennis

... Rosenberg MI, Brent AE, Payre F, Desplan C. eLife. 2014;3:e01440 doi:10.7554/eLife.01440 "Although parental RNAi in Nasonia is effective for maternal and early zygotic genes ..., it often does not provide significant knockdown of later-acting genes. To overcome this limitation, we designed ...

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by jonmoulton
Fri Mar 07, 2014 5:57 pm
 
Forum: Molecular Biology
Topic: Gene knockdowns in the wasp Nasonia vitripennis
Replies: 0
Views: 1164

Turner Syndrome and X chromosomes

Hi, I have a question. My university biology professor told us that one X chromosome in women is always bundled up, and we have some cells with the maternal x chromosome bunched up, and the others have the paternal x chromosome bunched up. Essentially, only one is in use at any given time, right? ...

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by ofekistit
Sun Nov 17, 2013 3:33 pm
 
Forum: Human Biology
Topic: Turner Syndrome and X chromosomes
Replies: 1
Views: 961

Re: What causes dominance between alleles?

... is a good way to illustrate once possibility (and a fairly common one). When you have two healthy alleles for a particular gene, one copy on a maternal and one on the corresponding paternal chromosome (and excluding the sex chromosomes), then usually both copies are making transcripts. Maternal ...

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by jonmoulton
Fri Aug 09, 2013 7:45 pm
 
Forum: Genetics
Topic: What causes dominance between alleles?
Replies: 2
Views: 3197

X chromosome inactivation

... not considered as "X chromosome inactivation". In mammals, X chromosome inactivation is random and can happen on the paternal or on the maternal X chromosome. hope it helps!

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by cathbr
Thu Jul 18, 2013 3:56 pm
 
Forum: Molecular Biology
Topic: X chromosome inactivation
Replies: 1
Views: 1612
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