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The two chromatids of a chromosome are attached at a point called the centromere. It is the point which it is attached to a spindle fiber during the process of cell division.
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Is chromosome Y an acrocentric chromosome?
A chromosome is determined to be metacentric, acrocentric or telocentric by the location of its centromere. Centromeres are the point of attachment of two sister chromatids. Sister chromatids are formed during DNA replication prior to mitosis or meiosis. Chromosome Y by itself (when it is not replicating and there are no sister chromatids) is not acrocentric, as it wouldn't even have a centromere location.
Is the attachment point of two sisters chromatids?
Chiasmata, coz they didnt say two chromatids (most probably)
What is the attachment point between two chromatids called?
Recall the Wobble-Base - here is a Wobble-Answer: This protein disk is called the di-Chromosome Centromere assembly disk [it brings - and temporarily Locks - the centromeres of the pair of Chromosomes together].
Is crossing over an advantage to an organism?
This is done by one of Mum's chromosomes swapping a segment of DNA with one of Dad's chromosomes.In the first prophase of meiosis (prophase I) each chromosome contains two molecules of DNA. You can see these as the two sister-chromatids of each chromosome. During this prophase, each chromosome pairs with the corresponding chromosome from the other set. In other words, the chromosome 1 from the male parent aligns itself beside chromosome 1 from the female parent, the two copies of chromosome 2 do likewise, and so on. The two copies of one chromosome are called homologous chromosomes.Each pair of chromosomes is called a bivalent, and consists of four chromatids twisted around each other. At various points along this bivalent, two non-sister chromatids will break at the same locus (point along the DNA) and recombine, so that now a stretch of DNA from Mum has attached to a stretch from Dad, and vice versa.On average, this crossing-over happens three or four times along the length of a chromosome, so that one DNA molecule now consists of alternating segments from each parent.Because no two parents are genetically identical, the recombined DNA has a base sequence that is different from that supplied by either parent. It is like a linear mosaic.The positions of crossing-over are pretty well random, so every time meiosis takes place in one individual novel base sequences are generated.
What holds 2 chromatids together?
The centromere is the part of a chromosome that links the sister chromatids together. There are two types of centromeres. Regional centromeres have DNA sequences that contribute to, but do not define function. Point centromeres are smaller and more compact, but the DNA sequences are necessary and sufficient to specify the centromere's identity and function.
Point on a chromosome where chromatids are attached?
Centromere
The point at which two chromatids are attached to each other in a chromosome is called?
Centromere!
What are the two chromatids of a chromosome are attached at a point?
centromere
What two chromatids of chromosome are attached at a point?
x and y chromosomes
Spot on a chromosome where the Kinetochore forms?
I think the centromere (the point at which the two chromatids are attached) is the spot where kinetochores form on a chromosome.
What is the point of attachment between two chromatids?
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.
Is chromosome Y an acrocentric chromosome?
A chromosome is determined to be metacentric, acrocentric or telocentric by the location of its centromere. Centromeres are the point of attachment of two sister chromatids. Sister chromatids are formed during DNA replication prior to mitosis or meiosis. Chromosome Y by itself (when it is not replicating and there are no sister chromatids) is not acrocentric, as it wouldn't even have a centromere location.
What is centremere?
The point along the length of homologous chromatids where they remain held together to form a chromosome.
Chromosomes are called what once they have duplicated in preparation for division?
During prophase, the chromosomes in a cell's nucleus condense to the point that they can be viewed using a light microscope. ... 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 centrome or chromosomal duplications
What is the name of the point at which the two halves of duplicated chromosomes are connected?
The part of a chromosome where two sister chromatids are joined together is called the centromere.
The point at which two chromatids joined is called what?
centromere
Is the attachment point of two sisters chromatids?
Chiasmata, coz they didnt say two chromatids (most probably)
