What does a duplicated chromosome consist of?
Because each duplicated chromosome consists of two identical sister chromatids joined at a point called the centromere, these structures now appear as X-shaped bodies when viewed under a microscope. Several DNA binding proteins catalyze the condensation process, including cohesin and condensin.
What does each duplicated chromosome have two of quizlet?
Each duplicated chromosome still has two chromatids. The cytoplasm divides and two new cells form. … The chromatids seperate and move to opposite ends of the cell. Each chromatid is now an individual chromosome.
What are duplicated chromosomes called?
Before anaphase begins, the replicated chromosomes, called sister chromatids, are aligned at along the equator of the cell on the equatorial plane. The sister chromatids are pairs of identical copies of DNA joined at a point called the centromere.
What does each duplicated chromosome have two of Chegg?
During the metaphase, two chromatids are formed from each chromosome by longitudinal splitting. … After cytokinesis, each chromosome duplicates (duplication of DNA, i.e., replication) forming two chromatids attached at centromere. Thus, the correct option is (b) two.
What accurately describes meiosis II?
During meiosis II, the sister chromatids within the two daughter cells separate, forming four new haploid gametes. The mechanics of meiosis II is similar to mitosis, except that each dividing cell has only one set of homologous chromosomes.
Is the number of DNA molecules in a duplicated chromosome half or double?
A chromatid (Greek khrōmat- ‘color’ + -id) is one half of a duplicated chromosome. Before replication, one chromosome is composed of one DNA molecule. In replication, the DNA molecule is copied, and the two molecules are known as chromatids.
When chromosomes duplicate the copies are?
Because each chromosome was duplicated during S phase, it now consists of two identical copies called sister chromatids that are attached at a common center point called the centromere.