AJH DNA Testing Practice 2

Front

Why is DNA important?

Back

It serves as the blueprint for traits of all living things.

Front

What does DNA stand for?

Back

Deoxyribonucleic acid, a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

Front

How many chromosomes do humans have?

Back

46

Front

What is a segment of DNA that carries hereditary instructional information?

Back

Gene.

Front

What is a genetically determined characteristic?

Back

Trait.

Front

What is the structure that carries genetic information in the form of genes?

Back

Chromosome.

Front

What is the basic unit of heredity?

Back

Gene.

Front

What is the process by which DNA makes a copy of itself?

Back

Replication.

Front

What are the building blocks of DNA?

Back

Nucleotides.

Front

What are the four bases of DNA?

Back

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