New York Regents Genes and Organelles

Front

What are the four types of nitrogen bases in DNA?

Back

Adenine, Guanine, Cytosine, Thymine.

Front

What is Chargaff's rule regarding nitrogen base pairing?

Back

Adenine pairs with Thymine, and Cytosine pairs with Guanine.

Front

What forms the backbone of the DNA structure?

Back

Sugar and Phosphate.

Front

What is the function of the Nucleus in a cell?

Back

It is the control center of the cell that contains DNA, the instructions for the organism.

Front

How can you remember which nitrogen bases match each other?

Back

Use the phrase 'Apple Trees' for Adenine-Thymine and 'Collard Greens' for Cytosine-Guanine.

Front

If there are 20 Thymine bases in a DNA strand, how many Adenine bases are there?

Back

20 Adenine bases.

Front

If there are 30 Guanine bases in a DNA strand, how many Cytosine bases are there?

Back

30 Cytosine bases.

Front

What is the structure of DNA often compared to?

Back

A twisted ladder.

Front

What are the rungs of the DNA ladder made of?

Back

Pairs of nitrogen bases.

Front

What is the role of Ribosomes in a cell?

Back

They are responsible for protein synthesis.