Question

Identify the double helix components using the diagram.

a. A and B
b. X and Y
c. Alpha and Beta
d. 1 and 2

Answer 1

The double helix components of DNA are A and B. Adenine pairs with thymine, and cytosine pairs with guanine through hydrogen bonding.

Step-by-step explanation:

The double helix components of DNA can be identified as A and B. The two strands of DNA are made up of nucleotides which consist of a sugar-phosphate backbone and nitrogenous bases. Adenine (A) pairs with thymine (T) and cytosine (C) pairs with guanine (G) through hydrogen bonding. The diagram does not provide any information about the double helix components. The search results provide information about the structure of the DNA double helix, but none of the options provided in the question are related to this topic. Therefore, the answer is that the question is not answerable based on the given information.

Answer 2

The components of the double helix structure of DNA based on the Watson-Crick base pairing rule are a. A and B.(option.a)

Step-by-step explanation:

The Watson-Crick base pairing rule defines the specific pairing of nucleotide bases in DNA. Adenine (A) pairs with Thymine (T), forming an A-T base pair, and Cytosine (C) pairs with Guanine (G), forming a C-G base pair. The structure of the DNA double helix consists of two complementary strands held together by hydrogen bonds between these base pairs.

In the context of the question, the options A and B represent the accurate identification of the components of the double helix. Strand A contains adenine (A) paired with thymine (T), and strand B contains cytosine (C) paired with guanine (G). Therefore, option A correctly identifies the components based on the Watson-Crick base pairing rule.

In summary, the correct components of the double helix structure of DNA are A and B, representing the A-T and C-G base pairs, respectively. The Watson-Crick base pairing rule is fundamental to understanding the complementary nature of DNA strands.

So correct option is a. A and B.(option.a)

Question:

Identify the components of the double helix structure of DNA based on the Watson-Crick base pairing rule. Choose the correct option:

a. A and B

b. X and Y

c. Alpha and Beta

d. 1 and 2