STAAR Biology Review

Front

What is the structure of a DNA molecule?

Back

A DNA molecule is structured as a double helix.

Front

What type of relationship exists between birds and antelope when birds warn antelope of danger?

Back

The relationship is called commensalism.

Front

What are the three parts of a nucleotide?

Back

1) Phosphate 2) Deoxyribose Sugar 3) Nitrogen Base

Front

What is cytokinesis?

Back

Cytokinesis is the stage of the cell cycle where the rest of the cell divides after mitosis is complete.

Front

What is thigmotropism?

Back

Thigmotropism is a plant's growth response to touch.

Front

What is the function of ribose in nucleotides?

Back

Ribose is a sugar component of RNA nucleotides.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and is double-stranded, while RNA contains ribose sugar and is single-stranded.

Front

What is the role of nitrogen bases in DNA?

Back

Nitrogen bases (adenine, thymine, cytosine, guanine) pair to form the genetic code.

Front

What is the purpose of mitosis?

Back

Mitosis is the process of cell division that results in two identical daughter cells.

Front

What is the significance of the cell cycle?

Back

The cell cycle is crucial for growth, development, and repair in organisms.