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Exploring Genetics and Molecular Biology

Authored by Glady Ruiz

Science

9th Grade

NGSS covered

Used 13+ times

Exploring Genetics and Molecular Biology
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17 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the purpose of gel electrophoresis in molecular biology?

To increase the size of DNA fragments

To separate DNA fragments based on their size

To create DNA fragments

To visualize proteins only

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Phosphates have a negative charge. Which part of the DNA molecule causes it to move towards the positive electrode during gel electrophoresis?

Phosphate backbone

Deoxyribose sugar

Nitrogenous bases

Hydrogen bonds

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is a taster gene?

A gene that determines an individual's preference for sweet tastes

A gene that is responsible for the ability to taste certain bitter compounds

A gene that enhances the taste of salty foods

A gene that suppresses the sense of taste

Tags

NGSS.HS-LS3-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a nontaster allele?

An allele that increases sensitivity to bitter tastes

An allele that has no effect on taste

An allele associated with the inability to taste certain bitter compounds

An allele that makes all foods taste sweet

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During gel electrophoresis, why do smaller DNA fragments move faster than larger ones?

Smaller fragments are negatively charged

Smaller fragments are positively charged

Smaller fragments encounter less resistance in the gel matrix

Larger fragments are attracted to the negative electrode

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main reason DNA molecules move through the gel during electrophoresis?

Gravity

Magnetic field

Electric current

Thermal convection

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a pedigree chart show?

The evolutionary history of a species

The life cycle of an organism

The inheritance of a trait through several generations

The genetic diversity within a population

Tags

NGSS.HS-LS3-1

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