Given below are two statements:
Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements, choose the correct answer from the options given below :
Given below are two statements:
Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements, choose the correct answer from the options given below :
- Both Statement I and Statement II are false.
- Statement I is true but Statement II is false.
- Statement I is false but Statement II is true.
- Both Statement I and Statement II are true.
The Correct Option is C
Solution and Explanation
Statement I is incorrect. In prokaryotes, there is no well-defined nucleus or nucleosomes as found in eukaryotes. The DNA in prokaryotes is located in a region called the nucleoid, but it is not associated with histones or proteins in the same way as eukaryotic DNA.
Statement II is true. In eukaryotes, the negatively charged DNA is indeed wrapped around the positively charged histone octamer to form nucleosomes, which are the basic units of chromatin organization.
Therefore, the correct option is (C): Statement I is false but Statement II is true.
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Enzymes are proteins that help accelerate metabolism or the chemical reactions in our bodies. They build some substances and decompose others. All living creatures have enzymes.
Our bodies naturally build enzymes. But enzymes are also in mass produce products and food.
One of the most important roles of enzymes is to succor digestion. The process of turning the food that we eat into energy is called digestion. For instance, there are enzymes in our saliva, pancreas, stomach, and intestines. They decompose fats, proteins, and carbohydrates. Enzymes make use of these nutrients for growth and cell repair.