Why adenine and thymine have double bond and guanine cytosine have triple bond in DNA Structure ?

Describe the complementary, antiparallel, double-stranded structure of DNA.

Why is a methylated base employed in DNA and not in RNA?

Both DNA and RNA are long chains of nucleotides. Nucleotides are made up of a phosphate group, a nitrogen base, and a five-carbon sugar. The carbons in the sugar (deoxyribose in DNA and ribose in RNA) are numbered 1′ to 5′. The nitrogen base is on the 1′ carbon, the phosphate is on the 5′ carbon, and there is a hydroxyl group on the 3′ carbon of a nucleotide. When nucleotides are joined together, the hydroxyl group is replaced by the phosphate from the 5′ carbon of the second nucleotide. Because of this, nucleic acids have directionality.Which of the following rows is true regarding transcription and translation? Select one: a. Transcription Translation mRNA grows 5' to 3'. Ribosomes move 3' to 5' along mRNA. b. Transcription Translation mRNA grows 3' to 5'. Ribosomes move 5' to 3' along mRNA. c. Transcription Translation mRNA grows 3' to 5'. Ribosomes move 3' to 5' along mRNA. d. Transcription Translation mRNA grows 5' to 3'.…

List the DNA bases that will complementary base pair with the following sequence: A-G-C-T-A-C-G

Using the DNA figure below to identify structures of the following letters: A= B= C= D= E= F: Circle a nucleotide for each backbone strand A B A G G A E T

If one side of a DNA molecule has the base sequence A T C G G G C C A A C C, what would the sequence be on the complementary strand?

What type of DNA helix spirals to the left and the backbone takes on a zigzag shape?

DNA is made of codons, which are sequences of three of the following molecules: Guanine (G), Adenosine (A), Cytosine (C), and Thymine (T). Repetitions are normal. How many different codons are possible that start with Guanine?

How many hydrogen bonds form when adenine pairs with thymine? When cytosinepairs with guanine?