Biology SOL Review (Part 1)

Front

What is the structure of DNA?

Back

DNA is structured as a double-stranded helix, consisting of two long strands of nucleotides twisted around each other.

Front

What is a frameshift mutation?

Back

A frameshift mutation is a genetic mutation caused by the insertion or deletion of nucleotides in a DNA sequence, which alters the reading frame of the genetic code.

Front

What occurs during the S phase of interphase?

Back

During the S phase of interphase, DNA replication occurs, resulting in the duplication of the genetic material in preparation for cell division.

Front

How do mammals primarily regulate body temperature during heat exposure?

Back

Mammals primarily regulate body temperature through sweating, which helps cool the body by evaporating sweat from the skin.

Front

What is the role of the nucleus in a cell?

Back

The nucleus is essential for maintaining the integrity of cellular DNA and regulating gene expression.

Front

What are nucleotides?

Back

Nucleotides are the building blocks of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What is the function of ribosomes?

Back

Ribosomes are cellular structures that synthesize proteins by translating messenger RNA (mRNA) into polypeptide chains.

Front

What is the difference between a missense mutation and a nonsense mutation?

Back

A missense mutation results in a different amino acid being incorporated into a protein, while a nonsense mutation creates a premature stop codon, leading to a truncated protein.

Front

What is the purpose of cytokinesis?

Back

Cytokinesis is the process that divides the cytoplasm of a parental cell into two daughter cells, completing cell division.

Front

What is vasodilation?

Back

Vasodilation is the widening of blood vessels, which increases blood flow and helps regulate body temperature.