2024 PBS Final Review

Front

What is the function of the superior and inferior vena cava in the circulatory system?

Back

The superior and inferior vena cava are large veins that carry deoxygenated blood from the body back to the right atrium of the heart.

Front

What is Gel Electrophoresis?

Back

Gel Electrophoresis is a laboratory method used to separate nucleic acids or proteins based on their size and electrical charge by measuring their rate of movement through an electrical field in a gel.

Front

What are the three main parts of a hair strand?

Back

The three main parts of a hair strand are the cuticle, cortex, and medulla.

Front

What is the role of the medulla in hair structure?

Back

The medulla is the innermost layer of the hair strand, which may contain air spaces and is thought to provide insulation and support.

Front

What is the role of the cortex in hair structure?

Back

The cortex is the middle layer of the hair strand, containing fibrous proteins and melanin, which gives hair its strength and color.

Front

What is the complementary DNA strand for ATGGC?

Back

The complementary DNA strand for ATGGC is TACCG.

Front

What is the primary function of the aorta in the circulatory system?

Back

The aorta is the largest artery in the body, responsible for carrying oxygenated blood from the left ventricle of the heart to the rest of the body.

Front

What is a restriction enzyme?

Back

A restriction enzyme is a protein that cuts DNA at specific sequences, which is useful in genetic engineering and molecular biology.

Front

What is the significance of cytosine in DNA?

Back

Cytosine is one of the four main bases in DNA, pairing with guanine, and plays a crucial role in the genetic code.

Front

What is the difference between DNA and RNA?

Back

DNA (Deoxyribonucleic Acid) is double-stranded and stores genetic information, while RNA (Ribonucleic Acid) is single-stranded and plays a role in protein synthesis.