The sister chromatids are held together by a) Centrioles b) Chromomere
c) Chromonemata
d) Centromere
Answers
Answered by
4
Answer:
b) Centromere
Explanation:
Two sister chromatids are joined together by the centromere. The centromere is a position of a DNA where a pair of sister chromatids are linked together. only one centromere is found in a chromosome. The types of chromosomes are defined on the basis of their position of the centromere. Four types of the centromere are there:
1. Metacentric
2. Sub-metacentric
3. Acrocentric
4. Telocentric
Answered by
3
The correct answer is d) Centromere.
Explanation:
- The Centromere is found at the primary constriction of the chromosome.
- It is the location at which the sister chromatids remain attached to each other.
- The region has high deposition of a particular protein called the Cohesin.
- The position of the centromere can vary along the length of the chromosome:
- Telocentric - Centromere at the end of the chromosome.
- Acrocentric - Centromere near the chromosome end.
- Sub-meta centric - Centromere near the middle region of the chromosome.
- Meta-centric - Centromere exactly at the middle of the chromosome.
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