Unit 8: DNA

Front

The structure and shape of DNA is a ____________.

Back

double helix

Front

Chromosomes are ________________.

Back

strands of tightly wound DNA

Front

A membrane bound organelle that contains DNA or genetic code for the organism. Controls the cell's activities is called _____________.

Back

Nucleus

Front

A change in the DNA sequence can have a positive, negative or no effect at all. (True/False)

Back

True

Front

A representation of something too small or too big to observe in real life is called a _____________.

Back

Model

Front

What is the basic unit of heredity in living organisms?

Back

Gene

Front

What is the function of DNA?

Back

To store and transmit genetic information.

Front

What are the building blocks of DNA?

Back

Nucleotides

Front

What are the four nitrogenous bases in DNA?

Back

Adenine, Thymine, Cytosine, Guanine

Front

What is the process by which DNA is copied called?

Back

Replication