what is the difference between chromatid and chromatin
Answers
Refer attachment.........
Answer:
They are all kind of form of GENETIC MATERIALS.
CHROMATIN : Loose form of genetic material & the “normal state” of DNA, RNA, and Protein in the nucleus in the cells.
The “Histones” in the picture are the Histone Proteins.
2. CHROMOSOME : Condensed form of chromatin, as shown in the picture.
Chromatin becomes chromosomes in the Prophase of Mitosis and Prophase I and Prophase II of Meiosis. It loosens again in the Telophase in Mitosis and Telophase I and Telophase II in Meiosis.
(Sorry if I was making you confused, but in Meiosis, The chromatin condenses in Prophase I, goes through Metaphase I and Anaphase I and de-condenses in Telophase I. Then, in Prophase II, the chromatin condenses to be chromosomes again. Then, it goes through the Metaphase II and Anaphase II. When it is in Telophase II, the chromosomes become loosened again to be chromatins again.
3. CHROMATID : Often known as “sister chromatids”, because the two sister chromatids in one chromosome are identical.
One thing to not be confused, after the mitosis and meiosis, you would be able to see this picture.
Anaphase and telophase in the mitosis (blue) and meiosis II (red) in the picture have only ONE strand floating around.
In your mind, you might think : “How should I call that, a chromatid or a chromosome?”
The answer is : it is a CHROMOSOME. (just with one strand) - If you write that as a chromatid, you would get wrong.
Thanks!