01_Intro Pre/Post Test

Front

What is CRISPR-Cas9?

Back

A genetic modification technique that edits parts of the genome of an organism, allowing scientists to add, remove, or modify sections of the DNA sequence.

Front

How can scientists control gene expression using CRISPR-Cas9?

Back

By activating or deactivating specific genes.

Front

Which two body systems are most directly regulating the digestive system?

Back

Endocrine and nervous systems.

Front

What property is found only in cancer cells?

Back

Unregulated cell division.

Front

What mutation is responsible for irregularly shaped red blood cells in sickle cell disease?

Back

Substitution mutation in the hemoglobin gene.

Front

What is the role of rennin in digestion?

Back

Rennin is an enzyme that catalyzes the reaction that solidifies milk.

Front

What happens to an enzyme when it is denatured?

Back

The enzyme loses its functional shape and cannot catalyze reactions.

Front

What is the function of hormones in the digestive system?

Back

Hormones stimulate the release of digestive enzymes and regulate nutrient absorption.

Front

What is the significance of the circadian clock in digestion?

Back

It helps regulate the timing of hormone release for optimal digestion.

Front

What is a substitution mutation?

Back

A mutation where one base pair in the DNA sequence is replaced by another.