Dictionary » C » Centromeres

Centromeres

See centromere (singular).


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Re: Chromatin

... 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 centromeres total. After replication there are still 46 centromeres, but the mass of DNA and number of chromatids have doubled ...

See entire post
by jonmoulton
Thu Sep 04, 2014 3:04 pm
 
Forum: Genetics
Topic: Chromatin
Replies: 2
Views: 204

Centromeres in a resting nucleus

Please take a look at this statement: Centromeres appear as constitutive heterochromatin in a resting nucleus. Is that true? Does that mean that the centromere sequences have no function in non-dividing cells? So, the centromeres must have sequences ...

See entire post
by Adz795
Sun Dec 04, 2011 9:55 am
 
Forum: Cell Biology
Topic: Centromeres in a resting nucleus
Replies: 3
Views: 1748

MITOSIS PHASES QUESTION?

... are no longer visible. The spindle apparatus has migrate to opposite poles of the cell.. 3. Metaphase The spindle fibres attach themselves to the centromeres of the chromosomes and align the the chromosomes at the equatorial plate. 4. Anaphase The spindle fibres shorten and the centromere splits, ...

See entire post
by HerrBiologie
Sun Oct 30, 2011 9:16 am
 
Forum: Cell Biology
Topic: MITOSIS PHASES QUESTION?
Replies: 2
Views: 4117

tricky F1 cross with specific allele crossover

... carrying the maternal a allele segregated with the paternal B allele. In this meiosis, there was no crossing over between genes A or B and their centromeres. The gametes resulting from this meiosis are expected to be? Ok so what i did as seen in the picture is cross two heterozygotes and during ...

See entire post
by vulpes
Tue Oct 04, 2011 4:07 pm
 
Forum: Genetics
Topic: tricky F1 cross with specific allele crossover
Replies: 1
Views: 3769

no repeat sequences in exons of genes?

... about were microsatellites (dispersed everywhere which are short sequences), dna transposons such as SINES and LINES, alpha satellite repeats in centromeres, telomerase repeats at the end of chromosomes, and some others. I know that sometimes LINES can use reverse transcriptase to insert a mRNA ...

See entire post
by vulpes
Sun Sep 04, 2011 3:29 pm
 
Forum: Genetics
Topic: no repeat sequences in exons of genes?
Replies: 5
Views: 10419
View all matching forum results

This page was last modified 09:39, 15 July 2008. This page has been accessed 4,687 times. 
What links here | Related changes | Permanent link