DNA - Genes - Chromosomes

Front

What is a short segment of a DNA strand that codes for our characteristics?

Back

gene

Front

How many chromosomes are found in each cell of your body?

Back

46

Front

The twisted ladder shape of DNA is referred to as a ....

Back

double helix

Front

Which of the following statements about chromosomes is correct?

Back

All of the above: Chromosomes are long, thread-like structures, found in the nucleus of all cells in the human body, and contain DNA.

Front

Where is DNA found in a human cell?

Back

nucleus

Front

What is the basic unit of heredity in living organisms?

Back

gene

Front

What are chromosomes made of?

Back

DNA and proteins (histones).

Front

How many pairs of chromosomes do humans have?

Back

23 pairs.

Front

What is the function of DNA?

Back

To store and transmit genetic information.

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.