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At the end of s phase each chromosome has how many coiled dna molecules?
Wiki User
∙ 12y ago
2 coiled DNA molecules.
Wiki User
∙ 12y ago
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The replicas of chromosomes that form during prophase are called what?
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.
How does a duplicated chromosome differ from a chromatid?
Chromosomes are what make up your genetic material. During interphase when the chromosomes are duplicating, they remain attached to their duplicated with a centromere. When they are connected with their duplicate, each individual of this pair is called a chromatid. So a duplicated chromosome is made up of two chromatids which are identical to each other.
What phase of meiosis does each replicated chromosome pair with its corresponding homologous chromosome?
Prophase 1 is the phase of meiosis ll when the homologous pairs combine. It is also when centrioles seperate, spindle fibers are formed, the nuclear envelope disappears, and the chromosomes become visible.
What is a chromatid?
A chromatid is one half of a chromosome at a stage of the cell cycle when the chromosome contains two molecules of DNA.A chromatid is like a twin; you can only use the term when there are two of them!Before DNA replicates, each chromosome has only one molecule of DNA. After replication of the DNA, there are two DNA molecules in each chromosome. These become visible under a light microscope when the chromosomes condense during prophase of the next division.Each chromosome then looks like an X. The left side of the X contains one DNA molecule (together with proteins) and the right side contains the other. Each half of the chromosome is a chromatid. At anaphase of the division, the two chromatids are pulled apart. From then on they are no longer referred to as chromatids, but as daughter-chromosomes.
Each chromosome usually contains multiple genes true or false?
Can each chromosome usually contain multiple genes? yes each chromosome usually contains more than one gene.
When is s phase complet?
S phase is complete when each chromosome has been duplicated.
How many chromatids does each chromosome have before S-phase?
There are two chromatids for each chromosome before the S-phase. The S-phase is wherein DNA of each chromosome is replicated.
What molecule is a chromosome made of?
protein and DNA Each chromosome in the nucleus includes one macromolecule of DNA, folded and coiled with protein molecules to reduce its size.
The replicas of chromosomes that form during prophase are called what?
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.
When is Phase complete?
S phase is complete when each chromosome has been duplicated.
What is DNA coiled up into thread like structures called?
When DNA is in its coiled up form, it is called a chromosome. These exist in the nucleus of each cell.
When is the S phase completed?
when each chromosome has been duplicated
What is the Phase of mitosis in which microtubules connect the centromere of each chromosome to the poles of spindle?
a microscopically small tuble, it is the introcellular support of the cytoskeleton and also helps in transport of certain protein molecules.
Is Sphase a phase of mitosis?
Yes it is a phase of mitosis. It the the phase in thich the chromosomes duplicate. As a result each chromosome ha 2 sister chromatids
The phase of mitosis in which microtubles connect the centromere of each chromosome to the poles of the spindle is?
Metaphase
What is the structure of a chromosomes?
Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Largest organic molecules?
DNA, each chromosome is 2 quite easily visible molecules under light microscope.
