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Sister

sister

1. A female who has the same parents with another person, or who has one of them only. In the latter case, she is more definitely called a half sister. The correlative of brother. I am the sister of one Claudio. (Shak)

2. A woman who is closely allied to, or assocciated with, another person, as in the sdame faith, society, order, or community.

3. One of the same kind, or of the same condition; generally used adjectively; as, sister fruits. Sister block See Charity, and mercy.

Origin: OE. Sister, fr. Icel. Systir; also suster, from AS. Sweostor, sweoster, swuster, akin to OFries. Sweester, suster, LG. Suster, suster, D. Zuster, OS. & OHG. Swestar, G. Schwester, Icel. Systir, Sw. Syster, Dan. Soster, Goth. Swistar, Lith. Ses, Russ. Sestra, Pol. Siostra, L. Soror, Skr. Svasr. Cf. Cousin.


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independent assortment

Whenever independent assortment is mentioned, 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 ...

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by leeroykincaid
Fri Apr 12, 2013 7:28 am
 
Forum: Cell Biology
Topic: independent assortment
Replies: 2
Views: 663

Bio Research Paper Writing

... as double stranded breaks (DBS) which tiggers chromosomal break-fusion-bridge cycles that result in the formation of new telomeres (from sister chromatids) and as a result, a cell is able to continue functioning; however under circumstances of chronic DDR activation, cells do not undergo ...

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by NathanielZhu
Thu Apr 04, 2013 2:25 am
 
Forum: General Discussion
Topic: Bio Research Paper Writing
Replies: 1
Views: 758

Genetics with Mitosis and Meiosis

... is copied during S-phase. So, after S-phase, each chromosome consists of 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: 3072

Re: Mitosis and meiosis!

... chromosomes are aligned at the equatorial line while metaphase in mitosis not. In Anaphase I, the homologous chromosomes are separated while sister chromatids are split at centromere in Anaphase of mitosis. You may get more info about meiosis at http://www.ask4biology.com/cell-biology/meiosis/

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by mavis
Wed Jan 30, 2013 9:00 am
 
Forum: Cell Biology
Topic: Mitosis and meiosis!
Replies: 3
Views: 2320

How dominance works at the DNA/RNA/protein

... contains genetic material from *one* parent. ... No. Chromatids are 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 other IF there was no recombination... The rest of your reasoning is ...

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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: 3377
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