Question

According to most recent studies, each chromosome consists of

• A. Single double helical DNA which is highly coiled and folded
• B. Variable number of DNA helices, depending upon the length of chromosome
• C. Many small DNA helices, which are joined by peptide linkages
• D. Small DNA helices, wrapped around each other like a rope

Answer 1

The correct option is A Single double helical DNA which is highly coiled and folded

There is a single, long, double-stranded, linear DNA molecule in a chromosome. The DNA contains biological and genetic information. It is highly coiled and folded, however this packing varies during the cell cycle.

So, the correct answer is 'Single double-helical DNA which is highly coiled and folded'.