DNA (Structure only) 7th Grade

Front

What is DNA?

Back

DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life.

Front

What are the four nitrogen bases in DNA?

Back

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

Front

What is the shape of DNA?

Back

DNA has a double helix shape, resembling a twisted ladder.

Front

What is complementary base pairing in DNA?

Back

In DNA, adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).

Front

Who discovered the structure of DNA?

Back

James Watson and Francis Crick are credited with determining the structure of DNA.

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA, consisting of a sugar, a phosphate group, and a nitrogen base.

Front

What are the three components of a nucleotide?

Back

Sugar, phosphate, and nitrogen base.

Front

What is a chromosome?

Back

A chromosome is a tightly packed structure of DNA and proteins that contains genes.

Front

What is the function of DNA?

Back

DNA stores and transmits genetic information used for the growth, development, and functioning of living organisms.

Front

What is the difference between a gene and a chromosome?

Back

A gene is a segment of DNA that codes for a specific trait, while a chromosome is a structure that contains many genes.