CELL DIVISION
MEIOSIS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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chromatid
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spindle fiber
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homologue
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replicant
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Detailed explanation-1: -A chromatid is one of the two identical halves of a chromosome that has been replicated in preparation for cell division. The two “sister” chromatids are joined at a constricted region of the chromosome called the centromere.
Detailed explanation-2: -Chromosomes and cell division After chromosome condensation, the chromosomes condense to form compact structures (still made up of two chromatids). As a cell prepares to divide, it must make a copy of each of its chromosomes. The two copies of a chromosome are called sister chromatids.
Detailed explanation-3: -At this point, nuclear division begins, and the parent cell is divided in half, forming 2 daughter cells. Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids.
Detailed explanation-4: -Chromatid is one of the halves of a chromosome. A chromosome contains only one chromatid. When the cell cycle occurs then after the completion of the S-phase of the cell cycle, the chromosome contains two identical sister chromatids. S-phase is when the DNA replication occurs.
Detailed explanation-5: -The primary function of sister chromatids is to pass on a complete set of chromosomes to all the daughter cells formed as a result of cell division. During mitosis, they are attached to each other through the centromere – a stretch of DNA that forms protein complexes.