객관식
What is the role of phosphodiester bonds within the sugar-phosphate backbone of DNA?
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11. Cell Division
Organization of DNA in the Cell
객관식
How is the information for a gene stored within a cell?
A
In the sequence of nucleotides in DNA
B
In the sequence of amino acids in proteins
C
In the sequence of sugars in carbohydrates
D
In the arrangement of phospholipids in the cell membrane
검증된 단계별 안내1
Begin by understanding the structure of DNA, which is composed of nucleotides. Each nucleotide consists of a sugar, a phosphate group, and a nitrogenous base.
Recognize that the sequence of nitrogenous bases (adenine, thymine, cytosine, and guanine) in DNA encodes genetic information. This sequence is crucial for the synthesis of proteins.
Learn about the process of transcription, where the DNA sequence is transcribed into messenger RNA (mRNA), which carries the genetic information from the nucleus to the ribosome.
Understand translation, where the sequence of nucleotides in mRNA is translated into a sequence of amino acids, forming a protein. This occurs at the ribosome with the help of transfer RNA (tRNA).
Clarify that while proteins are made of amino acids, the genetic information itself is stored in the sequence of nucleotides in DNA, not in the sequence of amino acids, sugars, or phospholipids.
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