Question

dna has a 3 - d shape called a

what are the three main functions of dna?
1.
2.
3.

if there are 84 as and 17 cs....
● how many gs are found in the dna molecule?
● how many ts are found in the dna molecule?

Explanation:

• DNA's 3 - D shape: Based on biological knowledge, DNA has a double - helix structure.
• DNA functions:
• Storage: DNA stores genetic information in the form of nucleotide sequences.
• Replication: It can replicate itself to pass on genetic information during cell division.
• Expression: DNA provides the template for the synthesis of RNA (transcription) and ultimately proteins (translation), which is the basis of gene expression.
• Base - pairing rules: In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). So if there are 84 A's, there are 84 T's. If there are 17 C's, there are 17 G's.

Answer:

• DNA has a 3 - D shape called a double - helix.
• Three main functions of DNA:
• Storage of genetic information.
• Replication to pass on genetic information.
• Expression (transcription and translation for protein synthesis).
• If there are 84 A's and 17 C's:
• Number of G's: 17.
• Number of T's: 84.