Basics of DNA (8th Grade)

Location

Nature of Science

Structure

DNA Basics

Vocabulary

100

Which organelle is DNA usually found in?

A. cell membrane

B. vacuole

C. chloroplast

D. nucleus

100

Scientists frequently repeat the experiments of other scientists. Why is this important in science?

A. Scientists often ask each other for help in performing experiments.

B. Replication of experiments helps to confirm and verify results.

C. Scientists frequently perform other scientists’ experiments in order to practice their technique.

D. Repeating experiments is an effective way to make sure a laboratory is in optimal condition.

B. Replication of experiments helps to confirm and verify results.

100

What is the shape of the DNA molecule?

A. Triple helix

B. Quadruple helix

C. Double helix

D. Single helix

C. Double helix

100

A tightly wound bundle of DNA is a chromosome.

False

True

100

What is a gene?

A. A type of protein

B. A type of RNA

C. chromosome

D. A section of DNA that codes for a protein

200

Chromosomes are found in the ____________ of the cell

A. Chloroplast

B. Nucleus

C. Cytoplasm

D. Mitochondria

B. Nucleus

200

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

A. independent variable

B. dependent variable

C. control variable

B. dependent variable

200

A long piece of coiled DNA found in the cells; contains genes that encode traits.

A. gene

B. chromosome

C. trait

D. DNA

B. chromosome

200

Which of these is controlled by your DNA?

A. Color of your eyes

B. What you ate yesterday

C. Tattoos

D. How many bonds carbon wants

A. Color of your eyes

200

What does DNA stand for?

A. Deoxyribonucleic acid

B. Dioxyribose nucleic acid

C. Dioxyribonucleic acid

D. Deoxyribose nucleic acid

A. Deoxyribonucleic acid

300

Identify the structure in the illustration

A. Eukaryotic Cell

B. Nucleus

C. Chromosome

D. DNA

B. Nucleus

300

What is a constant/control in an experiment?

A. Things that do not change in a experiment. It's the variable that stays the same. You can have many variables stay the same.

B. It's the variables that the scientist changes in the experiment

C. It's the variables that are being measured in an experiment

A. Things that do not change in a experiment. It's the variable that stays the same. You can have many variables stay the same.

300

What is the relationship between DNA and chromosomes?

A. Chromosomes are made of DNA

B. DNA is made of chromosomes

C. DNA and chromosomes are the same thing.

D. All of the above are correct

A. Chromosomes are made of DNA

300

A characteristic that an organism can pass on to its offspring through its genes

A. protein

B. trait

C. DNA

D. gene

B. trait

300

What is genetics?

A. The study of DNA nucleotides

B. The study of heredity

C. The study of a cell dividing into 2

D. The study of eye color

B. The study of heredity

400

Put in order smallest to largest:

A. Chromosome - DNA - Gene

B. Gene - DNA - Chromosome

C. DNA - Gene Chromosome

D. Chromosome - Gene - DNA

B. Gene - DNA - Chromosome

400

What is being changed in this experiment?

A. ramp height

B. the speed that the ball rolls

C. type of ball

400

This is a picture of?

A. Gene

B. Chromosome

C. DNA

D. Chromatid

B. Chromosome

400

Traits that are passed from generation to generation are called ___________________.

A. Excited Traits

B. Inherited Traits

C. Inclined Traits

D. Special Traits

B. Inherited Traits

400

The passing of DNA from parents to offspring

A. Generation

B. Heredity

C. Inheritance

D. Traits

B. Heredity

500

Which series is arranged in order from largest to smallest in size?

A. chromosome, nucleus, cell, DNA, nucleotide

B. cell, nucleus, chromosome, DNA, nucleotide

C. nucleotide, chromosome, cell, DNA, nucleus

D. cell, nucleotide, nucleus, DNA, chromosome

B. cell, nucleus, chromosome, DNA, nucleotide

500

What is being kept constant?

A. ramp height

B. speed of the ball rolling

C. type of ball

A. ramp height

500

Why are your chromosomes arranged in pairs?

A. Scientists have no idea

B. Because you get one from your mom and one from your dad

C. Because pairs can divide easier

D. Because DNA is awesome

B. Because you get one from your mom and one from your dad

500

Why is DNA important?

A. it is very small and very complicated

B. it's in everything

C. it serves as the blueprint for traits of all living things

D. because we eat it every day for energy

C. it serves as the blueprint for traits of all living things

500

Heredity is the passing of traits from _____________________ to _____________________

A. predators to prey

B. water to rain

C. parents to offspring

D. fungi to protists

C. parents to offspring