AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The sequence of nitrogenous bases in DNA varies widely. The sequence of the bases in DNA is most important for which of the following?
A
Providing the instructions for the traits of an organism
B
Preventing mutations from occurring during DNA replication
C
Allowing the DNA to have the shape necessary for replication
D
Helping form the sugar-phosphate backbone of DNA molecules
Explanation: 

Detailed explanation-1: -The sequence of nitrogenous bases in DNA varies widely. The sequence of the bases in DNA is most important for which of the following? Providing the instructions for the traits of an organism.

Detailed explanation-2: -The order, or sequence, of these bases determines the information available for building and maintaining an organism, similar to the way in which letters of the alphabet appear in a certain order to form words and sentences.

Detailed explanation-3: -A set of five nitrogenous bases is used in the construction of nucleotides, which in turn build up the nucleic acids like DNA and RNA. These bases are crucially important because the sequencing of them in DNA and RNA is the way information is stored.

Detailed explanation-4: -Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA .

Detailed explanation-5: -Within double-stranded DNA, the nitrogenous bases on one strand pair with complementary bases along the other strand; in particular, A always pairs with T, and C always pairs with G. Then, during DNA replication, the two strands in the double helix separate.

There is 1 question to complete.