DNA structure reg bio

Front

What is Chargaff's rule?

Back

Chargaff's rule states that in a double-stranded DNA molecule, the amount of adenine (A) is equal to thymine (T), and the amount of guanine (G) is equal to cytosine (C).

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), guanine (G), and cytosine (C).

Front

What is the structure of DNA?

Back

DNA is structured as a double helix, consisting of two strands that are twisted around each other.

Front

What is the role of the phosphate group in DNA?

Back

The phosphate group forms the backbone of the DNA strand, linking the sugar molecules together.

Front

What is the sugar component of DNA?

Back

The sugar component of DNA is deoxyribose.

Front

What does it mean for DNA strands to be antiparallel?

Back

Antiparallel means that the two strands of DNA run in opposite directions, with one strand oriented 5' to 3' and the other 3' to 5'.

Front

What is the significance of complementary base pairing in DNA?

Back

Complementary base pairing ensures accurate DNA replication and transcription, as adenine pairs with thymine and guanine pairs with cytosine.

Front

How does DNA replication occur?

Back

DNA replication occurs through a semi-conservative process where each strand serves as a template for the formation of a new complementary strand.

Front

What is the function of DNA?

Back

The primary function of DNA is to store and transmit genetic information that guides the development and functioning of living organisms.

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA, consisting of a phosphate group, a sugar (deoxyribose), and a nitrogenous base.