DNA
Chromatids are made of DNA molecules that are tightly coiled around proteins called histones. These DNA molecules contain the genetic information that is passed from one generation to the next.
Sister chromatids - two copies of the same DNA joined at the centromere.
The molecule critical for the proper separation of sister chromatids is called cohesin. Cohesin is a protein complex that holds the sister chromatids together during cell division. It helps ensure that the sister chromatids are accurately and evenly separated into two daughter cells.
Before cell division begins, each chromosome consists of two identical joined chromatids called sister chromatids. Each sister chromatid contains an identical copy of the chromosome's DNA molecule.
Each chromosome is originally made of one DNA molecule.
Chromosomes are made of DNA, which is a long molecule containing genes that provide instructions for building and maintaining an organism. DNA is wrapped around proteins called histones, forming a complex structure known as chromatin that makes up chromosomes.
Each pair of chromatids is attached at an area called a centromere.
Two sister-chromatids.Each chromatid consists of a molecule of DNA together with associated proteins. There are two DNA molecules (sister-chromatids) following the replication of DNA midway through the preceding interphase. The sister-chromatids are therefore genetically identical.chromatidschromatidsThe two identical joined chromosomes before cell division begins is called sister chromatids.
Chromatids are the little strings of DNA inthe process called mitoisis
The point of attatchment between two chromatids is called the centromere. When two chromatids are connected, it is called a chromosome which is essential in DNA replication, or, mitosis.
During prophase, a chromosome is composed of tightly coiled DNA and protein molecules. Each chromosome exists as a pair of identical sister chromatids which are held together at the centromere.
The cell structure that joins two sister chromatids into one single chromosome is called the centromere. This is at the center of the sister chromatids.