THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
composition of nucleotides
|
|
|
double-stranded spiral-helix
|
|
|
location of the deoxyribose molecule
|
|
|
arrangement of the nitrogenous bases
|
Detailed explanation-1: -Answer and Explanation: DNA directs protein synthesis from inside the nucleus because a copy of DNA, called mRNA is made that is exported to the cytoplasm. The first step in protein synthesis does just that, and is called transcription. During transcription DNA is copied to mRNA.
Detailed explanation-2: -Transcription is the process by which DNA is copied (transcribed) to mRNA, which carries the information needed for protein synthesis.
Detailed explanation-3: -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-4: -What statement best describes the role of DNA in protein synthesis? DNA carries the amino acid to the ribosomes.