FluffyCherry
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Okay, I know a chromosome is made up of DNA
but like in different text books when it comes to cell division it's either the chromosomes will replicate or the DNA, so they are both the same, i guess. However, in my textbook it says when a DNA replicate it forms a X-shaped chromosome so does that mean 2 DNA's = a chromosome and in my other textbook it says that the chromosome replicates to produce another chromatid. I'm confused now..
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Tillybop
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(Original post by Anne james)
Okay, I know a chromosome is made up of DNA
but like in different text books when it comes to cell division it's either the chromosomes will replicate or the DNA, so they are both the same, i guess. However, in my textbook it says when a DNA replicate it forms a X-shaped chromosome so does that mean 2 DNA's = a chromosome and in my other textbook it says that the chromosome replicates to produce another chromatid. I'm confused now..
Chromosomes are made up of DNA. When the cell has to divide by mitosis, the DNA winds up into chromosomes.
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Sugardollaps007
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(Original post by Anne james)
Okay, I know a chromosome is made up of DNA
but like in different text books when it comes to cell division it's either the chromosomes will replicate or the DNA, so they are both the same, i guess. However, in my textbook it says when a DNA replicate it forms a X-shaped chromosome so does that mean 2 DNA's = a chromosome and in my other textbook it says that the chromosome replicates to produce another chromatid. I'm confused now..

Every nucleus contains 23 pairs of chromosome and each chromosomes contain a gene which is a section of DNA and decides your characteristic eg eye colour and each gene contains two alleles one from each parent one recessive allelee and one dominant allele and an allele is basically an alternative form of a gene so DNA.
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