The chemical composition of the Eukaryotic chromosome is double-strand DNA is 40%, RNA is 1.5% and historic protein is 50%. It is positively charged, a basic protein with low molecular weight. Historic protein and DNA form a complex deoxyribonucleoprotein formed by the bond between the NH3+ group of amino acid and PO4- a group of DNA. It is present in all eukaryotes except in sperms. Take this quiz and increase your knowledge about the chemical composition of eukaryotic chromosomes.
1. Which one of the following form axis or core of the chromosome?
A. Regulatory protein
B. Enzymatic protein
C. Metal ions
D. Structural protein
2. Which one of the following keeps the chromosomal organization intact?
A. Protein
B. DNA
C. Metal ions
D. RNA
3. Which of the following what is the example of enzymatic protein traces?
A. DNA polymerase
B. RNA polymerase
C. Nucleoside triphosphatase
D. All of these
4. Regulatory protein regulate the.........
A. Structure of chromosome
B. Gene expression
C. Movement of gene
D. None of these
5. Nonhistonic protein is rich in........
A. Arginine and lysine
B. Tyrosine and lysine
C. Tryptophan and tyrosine
D. Arginine and tyrosine
6. In sperms, what is present at the place of stone?
A. Protamines
B. Metal ions
C. Both of these
D. None of these
7. Historic protein is rich in......... amino acids.
A. Arginine and lysine
B. Lysine and tyrosine
C. Tyrosine and tryptophan
D. Arginine and tryptophan
8. What is the ratio of arginine and lysine amino acids in the historic protein?
A. 1:2
B. 2:4
C. 1:1
D. 2:1
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