Each chromosome consists of two chromatids attached to the centromere. It is a nonsustainable area covered by kinetochore. DNA enclosed in a chromosome is called chromonemata. It is covered by a dystonic protein that forms the complex nucleosome. Sometimes chromosomes show secondary constriction which functions as a nucleolar organizing region. The site and number of NORs are constant for a given species. So take this quiz and know more about the physical structure of eukaryotic chromosomes.
1. Chromosomes are covered by a sheath called........
A. Trabant
B. Pellicle
C. Both of these
D. None of these
2. The Matrix present in a chromosome is made up of protein.........
A. RNA
B. Some lipids
C. DNA
D. All of these
3. The area of chromosome distal to the nucleolar organizing region is called.......
A. Satellite
B. Trabant
C. Both of these
D. None of these
4. What is the full form of SAT in the chromosome?
A. Some Acido thymonucleinico
B. Sign Acido thymonucleinico
C. Sine Acido thymonucleinico
D. None of these
5. The Terminal end of chromosomes is called......
A. Sat chromosome
B. Satellite
C. Pellicle
D. Telomeres
6. Which one of the following prevents exonuclease from degrading the ends of linear DNA chain?
A. Telomeres
B. Satellite
C. Paranemic
D. Plectonemic
7. In the human chromosome, which number chromosome does not have NOR regions?
A. 17
B. 18
C. 19
D. 20
8. The folding of the chromosomal thread is simple or interviewing of the two fibers. Former is called.......... And the later is called.............
A. Satellite and telomerase
B. Trabant and pellicle
C. Paranemic and plectonemic
D. Plectonemic and paranemic
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