MCQ on Chromosome Structure and Functions




Chromosomes are thread-like structures found in the nucleus of eukaryotic cells. They consist of DNA tightly coiled around histone proteins. Chromosomes carry genetic information in the form of genes and are essential for cell division, reproduction, and inheritance. Humans typically have 23 pairs of chromosomes, totaling 46 chromosomes in each cell. This is an MCQ on Chromosome Structure and Functions.

|  Cell and Molecular Biology Notes  |  Cell and Molecular Biology PPT  |



1. 
What is the primary function of chromosomes in eukaryotic cells?

2. 
Chromosomes are composed primarily of which biomolecule?

3. 
In eukaryotic cells, the genetic information stored in chromosomes is primarily in the form of:

4. 
How many sets of chromosomes are typically found in a diploid eukaryotic cell?

5. 
The region of a chromosome where two sister chromatids are held together is called the:

6. 
Which of the following is NOT a function of chromosomes?

7. 
Chromosomes play a crucial role in the inheritance of traits from one generation to the next. In humans, how many chromosomes are found in each somatic cell?

8. 
The structure of a chromosome can be visualized most clearly during which phase of the cell cycle?

9. 
The specific sequence of DNA that codes for a particular protein or trait is known as a:

10. 
In humans, the sex chromosomes determine an individual's biological sex. What are the sex chromosomes in males?

11. 
Telomeres are protective structures found at the ends of chromosomes. What is their primary function?

12. 
Chromosomes are essential for maintaining genetic stability. When a chromosome undergoes a mutation or structural alteration, what term is commonly used to describe the altered chromosome?

13. 
In addition to encoding genes, chromosomes also contain non-coding sequences that play regulatory roles in gene expression. What term is often used to describe these non-coding regions of DNA?

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