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What is the difference between a chromatid and a centromere?
The centromere is the region of the chromosome that holds the two sister chromatids together during mitosis. The chromatid is one of the two strands of chromosomes that become visible during mitosis or meiosis.
When the chromosomes make an exact copy of themselves what are they then called?
When chromosomes make an exact copy of themselves, they are called sister chromatids. Sister chromatids are identical copies of a chromosome that are held together by a structure called the centromere.
What structures make up chromosomes?
Chromosomes are composed of DNA molecules tightly wound around proteins called histones. This DNA-protein complex is further condensed into chromatin fibers, which then coil and condense to form the recognizable X-shaped structures we see during cell division. Each chromosome contains a single linear DNA molecule that contains the genetic information of the organism.
How many chromatids have one chromosome?
Two (2). Before DNA replication, each chromosome is composed of a single chromatid. After replication, but before separation of the chromatids during anaphase, this is true.
What is the difference between a chromosome and a DNA molecule?
The difference between a chromosome and a DNA molecule is that a chromosome is a single DNA molecule associated with proteins and a DNA molecule is a long thin molecule that stores genetic information.
What is chromatid?
A chromatid is one half of a duplicated chromosome, joined together by a centromere. Each chromatid contains identical genetic material and is essential for proper chromosome segregation during cell division.
How many DNAmolecules make up each original chromosome?
A chromosome is formed from a single DNA molecule.
What is the difference between a chromatid and a centromere?
The centromere is the region of the chromosome that holds the two sister chromatids together during mitosis. The chromatid is one of the two strands of chromosomes that become visible during mitosis or meiosis.
Why does having only a single X chromosome make a person of necessity female?
Its not a guarantee, but generally it holds true. There are some instances when the part of the y chromosome which determines sex is tacked onto an X chromosome. This can result in XX males. In general though the Y chromosome is responsible for making a biological male.
When the chromosomes make an exact copy of themselves what are they then called?
When chromosomes make an exact copy of themselves, they are called sister chromatids. Sister chromatids are identical copies of a chromosome that are held together by a structure called the centromere.
What structures make up chromosomes?
Chromosomes are composed of DNA molecules tightly wound around proteins called histones. This DNA-protein complex is further condensed into chromatin fibers, which then coil and condense to form the recognizable X-shaped structures we see during cell division. Each chromosome contains a single linear DNA molecule that contains the genetic information of the organism.
Two of these make a chromosome?
Two chromatids connected at the centromere make up one chromosome.
do genes make chromosome?
no
How many chromatids have one chromosome?
Two (2). Before DNA replication, each chromosome is composed of a single chromatid. After replication, but before separation of the chromatids during anaphase, this is true.
What is the relationship between the y chromosome and alcohloism?
y chromosome is the chromosome that makes males, alcoholism has nothing to do with it unless you make the choice to drink
What is the difference between a chromosome and a DNA molecule?
The difference between a chromosome and a DNA molecule is that a chromosome is a single DNA molecule associated with proteins and a DNA molecule is a long thin molecule that stores genetic information.
Describe the chromatids that make up a chromosome when a cell is ready to divide.?
Describe the chromatic that make up a chromosome when a cell is ready to split
