Question

The number of DNA coils present over a nu body is?
a) $1.75$
b) $175$
c) $75$
d) $5$

Answer 1

DNA known as deoxyribonucleic acid is the major component in the cell. It resides in a compact structure called chromosomes. DNA are helical structured single and also double stranded structures in cells. They have a variety of proteins like histone proteins. DNA contains the most vital thing called genes. Numerous genes are termed to be one DNA. Million copies of genes. Genes are the heredity of animals. They contain the genetic information by which animals or organisms have different characters, morphological features.

Complete answer:
As we discussed, DNA is present inside cells in a coiled form. Numerous DNA possesses to be chromosomes. It is like a gene bank in a cell.
a) $1.75$- the coils of DNA in the nucleus are nothing but as we knew, chromosomes. They are long stretches of DNA present in a compact manner together by proteins. So, the number of DNA coils present in body is $1.75$
option A is correct.
b) $175$- the number of coils is in a specific manner. The proteins which are compactly arranged with the chromosomes are called chromatin structures. Hence it cannot be correct.
Option B is incorrect.
c) $75$- length of Human DNA as we know has- pairs of $22$ autosomes in total $46$ chromosomes in the nucleus. So, they have a specific number of DNA in each chromosome. It cannot be altered.
Option C is incorrect.
d) $5$- DNA usually exists as a single strand, but instead as a pair of strands that are held tightly together. As DNA is naturally helical molecule, DNA is supercoiled using enzymes so that it takes less space. This number is not sufficient for the encoder.
Option D is incorrect.

Option A is the correct answer.

Note:
As we know how DNA gives rise to RNA by transcription. It is the major genetic process to build the genetic information which is RNA and also DNA. It is the process of transcription DNA to RNA, particularly messenger RNA. It uses the DNA as template strand or parent strand and then the RNA is synthesized. This is a complex process. As RNA delivers all the information from DNA and DNA is the building machine of the body which contains genes for the functions, characters etc.