Are the sister chromatids identical or different?
The sister chromatids are pairs of identical copies of DNA joined at a point called the centromere. During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle.
Are sister chromatids identical in DNA sequence in G2?
In G2, after DNA replication in S phase, as cell enter mitotic prophase, each chromosome consists of a pair of identical sister chromatids, where each chromatid contains a linear DNA molecule that is identical to the joined sister.
Which of the following are true about sister chromatids?
Sister chromatids are exact copies of each other and are formed just prior to cell division. After mitosis, sister chromatids contain the same genes, but they may have different alleles. Sister chromatids are produced during mitosis. All of these statements about sister chromatids are TRUE.
During which phases are chromosomes composed of sister chromatids?
In the S phase (synthesis phase), DNA replication results in the formation of two identical copies of each chromosome—sister chromatids—that are firmly attached at the centromere region. At this stage, each chromosome is made of two sister chromatids and is a duplicated chromosome.
Is chromatid and chromosome the same?
Now, a chromosome is made up of two strands which are identical to each other and these are called Chromatids.
|Difference between Chromosome and Chromatid|
|Their Function is to carry the genetic material||Their main function is to enable the cells to duplicate|
What are the 2 common parts of a nucleotide?
- a nitrogenous base.
- a five carbon sugar.
- at least one phosphate group.
Does each sister chromatid have a centromere?
Sister chromatids are two identical copies of the same chromosome formed by DNA replication, attached to each other by a structure called the centromere.
In what phase of both mitosis and meiosis are sister chromatids present?
Individual chromosomes align on the metaphase plate and sister chromatids separate at anaphase in both mitosis and meiosis II.