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When an original chromosome copies it self it is said to?
When an original chromosome copies itself, it is said to undergo DNA replication. This process involves the duplication of the genetic material to produce two identical sister chromatids that are attached at the centromere. DNA replication is an essential step in cell division and ensures that each daughter cell receives a complete set of genetic information.
What are the two copies of DNA on each chromosome that form just before cell division?
The two copies of DNA on each chromosome that form just before cell division are called sister chromatids. Sister chromatids are identical copies of the original chromosome that are created during DNA replication in the S phase of the cell cycle. They are held together by a structure called the centromere.
What is an original chromosome and its copy called?
An original chromosome is called a homologous chromosome, and its copy is called a sister chromatid. Homologous chromosomes have the same genes in the same order but may have different alleles, while sister chromatids are identical copies produced during DNA replication.
Why are chromosome called doubled chromosomes just before mitosis begins?
Just before cell division begins,the amount of DNA doubles and so do the chromosomes.Each doubled chromosome consists of two copies of the original chromosome joined at the center
What are sister chromotids?
Idenical copies of a chromosome
Why are chromosomes called double chromosomes before mitosis?
Just before cell division begins,the amount of DNA doubles and so do the chromosomes.Each doubled chromosome consists of two copies of the original chromosome joined at the center
What is the condition in which an individual has three copies of a chromosome?
The condition in which an individual has three copies of a chromosome is called trisomy. It can result in genetic disorders such as Down syndrome, which is caused by an extra copy of chromosome 21.
After replication each chromosome harbors what?
After replication, each chromosome harbors two sister chromatids, which are identical copies of the original chromosome. The sister chromatids are held together at the centromere and will later separate during cell division.
What are pair of similar chromosomes called?
HomologousWe receive one complete set of chromosomes from each parent. This means that for each chromosome, say chromosome 7, there are two copies in every cell of our bodies: the maternal and paternal copies of chromosome 7.The two copies of one chromosome are called a pair of homologous chromosomes.
How many copies of each chromosome are found in the most animal cells?
There is only one pair fo chromosome in a sex cell.
How many chromosome has copies?
Organisms can have two copies of each chromosome, one from each parent. This is known as diploid. Other organisms, like plants, can have more than two copies of each chromosome (polyploidy). Having multiple copies of chromosomes can affect gene expression and traits in organisms.
What caused anomaly when one daughter cells gets two copies of a chromosome?
The process by which a daughter cell accidentally get two copies of a chromosome is called "nondisjuction".
