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## DNA = Chromosome

Genetics as it applies to evolution, molecular biology, and medical aspects.

Moderator: BioTeam

Jack what is LOL and BTW .Did you have a look at the website or are you just stirring instead of moderating. I said SPINE. I said 2 organs make 2 sounds. The spleen goes M and N (excited and disappointed) and the Cerebellum goes Y during the awake state and Z when we are asleep. Who set the clock at 24 hours? It is the intelligent way to divide a 360 degree circle. What about the matter at hand is it 24 chromosomes or 23? If so can you point me to a reference that supports the pairing of X and Y.
sharan
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### Re:

sharan wrote:A pair equals a chromosome. Each of these 22 pairs have a number from 1 to 22, add 2 sex chromosomes and the result is 24. Kolean clearly states that there are 2 X chromosomes in the female's cells at the beginning, add 22 pairs to this and you start with 24. Drop one of these and you get 23 multiply this by 2 and the result is 46! and only one of these 46 is a sex chromosome. Which means that if 44 form a pair then there is 1 half chromosome floating around looking for a partner

first mistake
a pair of chromatids equals a chromosome and not a pair equals a chromosomes
second mistake
22 pairs of chromosomes are there and not 22 pairs of chromatids. do you get my point?
third mistake
a carried over mistake
22 pairs= 44
+ 2 X chromosomes
= 46

this is the right thing

and now let's consider your second part in which you try to pove your thoughts to be true
sharan wrote:Drop one of these and you get 23 multiply this by 2 and the result is 46! and only one of these 46 is a sex chromosome. Which means that if 44 form a pair then there is 1 half chromosome floating around looking for a partner

mistake number 4
from where did you get 44? you have forgotten that there are 46 chromosome and not 46 chromatids

mistake number 5
\basically you are not considering 1 chromosome as 1 out of 46 you are taking it to be equal to 2.
and that's how you get the 1/2 chromosome floating
it isn't what you do that matters but it is how you do it

jwalin
Coral

Posts: 438
Joined: Tue Sep 15, 2009 3:43 pm

to clarify the point regarding we have 46 chromosomes

see we have 23 pairs of chromosomes in total. that is 46 chromosomes. and which is equal to 92 chromatids.

92 chromatids as 1 pair of chromatids form a chromosome
it isn't what you do that matters but it is how you do it

jwalin
Coral

Posts: 438
Joined: Tue Sep 15, 2009 3:43 pm

OK, so what is spine in accordance to you?
http://en.wikipedia.org/wiki/Spine#Medicine

How do you divide the Czech alphabet?
http://cs.wikipedia.org/wiki/Abeceda
a, á, b, c, č, d, ď, e, é, ě, f, g, h, ch, i, í, j, k, l, m, n, ň, o, ó, p, q, r, ř, s, š, t, ť, u, ú, ů, v, w, x, y, ý, z, ž
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.

JackBean
Inland Taipan

Posts: 5694
Joined: Mon Sep 14, 2009 7:12 pm

The spine is the column of 24 vertebra (7 Cervical+ 12 Thoracic + 5 Lumbar). It sits on top of a sacrum, which is a collection of fused bones and these can vary in number in individual humans.
Wikipedia definitions suck. It is why we are having this discussion. It begs for editors who are working scientists instead of rehashers. I sincerely hope that climate change does not fall into the hands of a wikipedea group as is being suggested to replace the IPCC.
The Czech alphabet is not used much. There are 26 basic sounds i.e. letters that do not have accents or combinations like ch. I am not familar with the Japanese alphabet but I am pretty sure that you make the same sounds as the rest of us.
The Human Genome project shows 24 chromosomes 22+X+Y. If that ads up to 23 then when you multiply this by 2 you are back to 46. In this number, there would have to be 2X's and 2Y's. This would then mean that you would have 42 left to make pairs and you would be left with 21 pairs and 4 sex chromosomes. Jack Bean was right at the start, when he quoted Wikipedia. There are 46, and 2 of those are (single) sex chromosomes. This is my last post on this topic, thanks guys.
sharan
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Posts: 23
Joined: Tue Feb 02, 2010 8:47 am

### Re:

Jwalin
"see we have 23 pairs of chromosomes in total."
This is not truth.
sharan
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Posts: 23
Joined: Tue Feb 02, 2010 8:47 am

### Re:

sharan wrote: Who set the clock at 24 hours? It is the intelligent way to divide a 360 degree circle.

Really? I would expect to divide it into e.g. 36 parts, if is it supposed to be so intelligent.
Notably, the day and hours has nothing to do with circle and clocks, but never mind...
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.

JackBean
Inland Taipan

Posts: 5694
Joined: Mon Sep 14, 2009 7:12 pm

@sharan
males do not have 2 X's and 2 Y's

then would you have 4X's in females
it isn't what you do that matters but it is how you do it

jwalin
Coral

Posts: 438
Joined: Tue Sep 15, 2009 3:43 pm

### Re: Re:

sharan wrote:Jwalin
"see we have 23 pairs of chromosomes in total."
This is not truth.

Well, as a matter of fact: it is true.

It is not too hard for you to check this. We all have 23 chromosome pairs. The last 23d pair is made of sex chromosomes (X+Y or X+X depending on the individuals sex).

22 autosomal chromosome pairs, 1 sex chromosome pair.
Swede
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Have a look at the Human Genome Poster. The whole discussion was whether the sex chromosomes form a pair! So far no one has come up with a research paper that says so.
If you accept that there are 46 chromosomes of which 2 are sex, then 22pairs +X+Y=24. The initial mistake that was made is holding back the science. There are 24 hours in a day. There are 24 vertebrae in our spine. There are 12 zodiac signs which we feel through 2 organs giving us 24 Chi Chi. It is important that we wake up to the fact that we have evolved on a planet which spins and travels round the Sun at speeds of over 100000 km/hr.
sharan
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Joined: Tue Feb 02, 2010 8:47 am

you do not have 2 Y's and 2X's

suppose you had 2 X chromosomes and 2 Y chromosomes

then after meosis 1 we get 2 cells each with 1 X and 1 Y chromosomes

and after meosis 2 we get 4 haploids with 1 X and 1 Y chromatid in it. this ain't possible.
it isn't what you do that matters but it is how you do it

jwalin
Coral

Posts: 438
Joined: Tue Sep 15, 2009 3:43 pm

Dear ssas,

Each cell contains 2 DNA molecules (that's the reason because of we are diploid, we have 2 copies of DNA per cell) and each of them is divided in 23 chromosomes with 2 chromatides (each chromatide is 1/23 part of each DNA molecule).
extari
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Joined: Tue Jul 14, 2009 4:46 pm

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