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during prophase
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∙ 13y ago
Wiki User
∙ 14y agothey are joined during synthesis
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What is the region of chromosomes where paired chromosomes are joined?
The centromere is the part of the chromosome where sister chromatids are joined together.
How many chromatids does each chromosome have after S-phase?
A chromatid really only exists during the first two stages of mitosis(prophase and metaphase). This is when the DNA has been replicated and the chromosomes essentially is composed of 2 identical segments.
What structure is formed by two sister chromatids being held together by a centromere?
A bivalent.Sister chromatids are normally joined at the centromere. When homologous chromosomes pair, the two sister chromatids of one chromosome join with the two sister chromatids of the other chromosome. So it is really the joining of non-sister chromatids that is special.The word "bivalent" refers to the temporary combining of the two chromosomes (four chromatids). The bivalent forms in prophase I of meiosis, and is split in anaphase I.
Which term describes two recently replicated DNA strands that are joined together just before cell division?
The term that describes two recently replicated DNA strands that are joined together just before cell division is "sister chromatids." Each sister chromatid is an identical copy of the original DNA molecule and is held together at a region called the centromere. During cell division, the sister chromatids separate and are distributed to the daughter cells.
A duplicated chromosome consists of two?
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.
The point at which two chromatids joined is called what?
centromere
What is the region of chromosomes where paired chromosomes are joined?
The centromere is the part of the chromosome where sister chromatids are joined together.
What is the structure at the center of the chromosomes where sister chromatids are attached?
When sister chromatids are joined together they are held together by proteins, which make up the centromere. The two chromatids together make up a chromosome.
When a double helix DNA is replicated two complete helices are formed together these helices are called sister?
Sister chromatids - two copies of the same DNA joined at the centromere.
How can you write a sentence with centromere in the sentence?
The chromatids are joined together at a point called the centromere.
What are chromosome pairs attached to?
Pairs of chromosomes are not attached. Before mitosis chromosomes replicate themselves, these twin identical chromosomes are attached at the centromere. before cell division the cell has 46 chromosomes (23 pairs) but has 2 copies of each individual chromosome called chromatids,(making a total of 92 chromosones, 46 for each daughter cell) which are joined at the centromere giving the characteristic X shape. Pairs are not joined, chromatids are.
How many chromatids are in a tetrad?
All tetrads contain four chromatids. Each "leg" is one chromatid.2Tetrad = 2 homologous chromosomes1 homologous chromosome has 2 chromatids joined together by a centromere.That means that there are four chromatids in a tetrad
Before cell division begins each chromosomes consists of two identical joined chromosomes called?
sister chromatids
How many chromatids does each chromosome have after S-phase?
A chromatid really only exists during the first two stages of mitosis(prophase and metaphase). This is when the DNA has been replicated and the chromosomes essentially is composed of 2 identical segments.
What structure is formed by two sister chromatids being held together by a centromere?
A bivalent.Sister chromatids are normally joined at the centromere. When homologous chromosomes pair, the two sister chromatids of one chromosome join with the two sister chromatids of the other chromosome. So it is really the joining of non-sister chromatids that is special.The word "bivalent" refers to the temporary combining of the two chromosomes (four chromatids). The bivalent forms in prophase I of meiosis, and is split in anaphase I.
Why do chromosomes resemble the letter X when viewed during methaphase?
Because there are two sister chromatids joined at a point in the middle (the centromere).
Are joined strands of duplicated genetic material?
Chromosomes and sister chromatids are joined strands of duplicated genetic material. A chromatid is one copy of a duplicated chromosome which, before replication, is composed of one DNA molecule.
