DNA Structure Review 24

Front

What does DNA stand for?

Back

Deoxyribose Nucleic Acid

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides.

Front

What are the building blocks of DNA?

Back

Nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G).

Front

How do nitrogenous bases pair in DNA?

Back

Adenine pairs with Thymine (A-T) and Cytosine pairs with Guanine (C-G).

Front

What is the function of DNA?

Back

DNA stores genetic information and provides instructions for the development and functioning of living organisms.

Front

What is a chromosome?

Back

A chromosome is a long, continuous thread of DNA that contains many genes.

Front

How many pairs of chromosomes do humans have?

Back

Humans have 23 pairs of chromosomes.

Front

What is the role of restriction enzymes in DNA manipulation?

Back

Restriction enzymes cut DNA at specific sequences, allowing scientists to manipulate DNA for cloning or analysis.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil instead of thymine.