A chromatid is one of two identical halves of a replicated chromosome. During cell division, the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes.
What is the difference between a chromatid and a sister chromatid?
Chromatids are two fibre strands which are fused together by a lone centromere, produced from the duplication of the chromosome in the early stages of cell division. “Chromatids” are terms used in the process of either meiosis or mitosis. … Sister chromatids are two identical copies of a chromatid.
How many centromeres are in a chromosome?
Full Member. Cliffs AP bio says there is 1 centromere per chromosome.. but after a duplicated chromosome splits, the chromatids are considered chromosomes because each chromatid has 1 centromere.
Is DNA bigger than chromosome?
If we talk about the uncoiled DNA, then DNA is larger than the chromosome. And if we talk about the coiled DNA, then DNA is smaller than the chromosome. When DNA gets coiled, it becomes smaller in size just in order to fit the nucleus of the cell.
How does 6 feet of DNA enter a cell?
Explanation: Packed inside the nucleus of every human cell is nearly 6 feet of DNA, which is divided into 46 individual molecules, one for each chromosome and each about 1.5 inches long. … For DNA to function, it can’t be crammed into the nucleus like a ball of string.