Dictionary » S » Sister chromosomes

Sister chromosomes

2 (daughter) cells, with its own nucleus and identical chromosomes; made from a cell membrane during cytokinesis of mitosis.


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Crossing-over

... the exchange of genetic information between which of the following: sex chromosomes, sister chromatids, chromatids, homologues. I chose homologues seeing the answers should be ...

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by myst
Sat Aug 24, 2013 3:12 pm
 
Forum: Genetics
Topic: Crossing-over
Replies: 0
Views: 1949

independent assortment

... it's in the context of meiosis I. However, if crossing over occurs, sister chromatids are no longer identical so diversity should be increased during meiosis II because of independent assortment of chromosomes in metaphase II, conserning the recombinant and non-recombinant sister ...

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by leeroykincaid
Fri Apr 12, 2013 7:28 am
 
Forum: Cell Biology
Topic: independent assortment
Replies: 2
Views: 4397

Genetics with Mitosis and Meiosis

... two strands. When the DNA is coiled, the two strands are referred to as sister chromatids. The sister chromatids are what make chromosomes X-shaped. However, a chromosome with only one chromatid will be just a line, not ...

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by wildfunguy
Sun Feb 03, 2013 11:45 pm
 
Forum: Genetics
Topic: Genetics with Mitosis and Meiosis
Replies: 2
Views: 7695

Re: Mitosis and meiosis!

... not on the S phase. The differences are the meiosis is the reduction of chromosomes number compared parent cell. In Meiosis Prophase I is different ... not. In Anaphase I, the homologous chromosomes are separated while sister chromatids are split at centromere in Anaphase of mitosis. You may ...

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by mavis
Wed Jan 30, 2013 9:00 am
 
Forum: Cell Biology
Topic: Mitosis and meiosis!
Replies: 3
Views: 4370

How dominance works at the DNA/RNA/protein

Thank you! I was getting confused between pairs of chromosomes and pairs of chromatids. I think I have a clearer mental model now: ... present ONLY during cell division when each chromosome is duplicated and 2 sister chromatids are joined at the centromere. They would be identical to each ...

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by Cat
Fri Oct 05, 2012 1:15 am
 
Forum: Genetics
Topic: How dominance works at the DNA/RNA/protein
Replies: 10
Views: 7749
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