Question

Which description best explains Watson and Crick's DNA model?. A:DNA single stranded molecule that has nitrogenus base towards its exterior . . B:DNA is a double-helix made of 2 strands linked together with hydrogen bonds . C:DNa is a double-helix that contains nitrogenious bases towards its exterior

Answer 1

Due to bonding interactions the nitrogenous bases on one strand of the DNA will always bind with another base on the other strand of DNA. This is due to many different enzymes that help DNA to take its structure

Answer 2

Answer: B:DNA is a double-helix made of 2 strands linked together with hydrogen bonds.

Step-by-step explanation:

According to the double stranded structure of the DNA proposed by Watson and Crick. The DNA double helix consists of sugar-phosphate backbones that lies outside, the DNA double helix in between is supported by the hydrogen bonds present in between the pairs of nitrogenous bases on the inner side.