Selective breeding is done for which of the following reasons?

To allow people to breed organisms to obtain desired traits.

To determine the possible outcome of a genetic cross.

So that organisms won't change their traits.

If an organism is called a hybrid, what alleles does it have?

One dominant and one recessive allele

This Punnett square shows a cross between ---

A hybrid parent and a homozygous parent

A heterozygous parent and a heterozygous parent

Why is DNA important?

it serves as the blueprint for traits of all living things

it is very small and very complicated

because we eat it every day for energy

What determines the code, or information, of a DNA molecule?

the order (sequence) of the nitrogen bases

the shape (structure) of the nitrogen bases

the color of the nitrogen bases

the frequency (number) of nitrogen bases

Why do farmers choose to use GM crops rather than regular crops?

They are more productive (can grow more crops quickly or more efficiently).

They are safer because they have no disadvantages.

If you want to make a GM crop that is purple, what is the first thing you need to do?

Find a plant that is naturally purple.

Use an enzyme to cut a gene out of a plant.

Use a virus to insert a gene into a plant.

What is one significant issue with many Genetically Modified Organisms?

They may affect other organisms in their environment.

They are too expensive to be useful.

They might evolve more quickly.

What is a major advantage to Genetically Modified Organisms?

Can make organisms not found in nature

Genetic Unit Review Exam

Quiz

•

Biology

•

6th - 8th Grade

•

Practice Problem

•

Hard

•

NGSS

HS-LS3-1, HS-LS3-2, HS-LS1-1

+6

Standards-aligned

Charles Martinez

FREE Resource

55 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Study of Heredity

Biology

Geology

Genetics

Cellology

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Passing of traits from parent to offspring

genetics

Punnett squares

heredity

mitosis

Tags

NGSS.HS-LS3-1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

different forms of a gene

big or little

simple or complex

alleles

codominant

Tags

NGSS.HS-LS3-2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

describes an organism with two different alleles for a trait

homozygous

heterozygous

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

an offspring that was given different genetic information for a trait from each parent

hybrid

purebred

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The graphic represents two parents that are_________ for a trait.

Homozygous recessive

Homozygous dominant

Heterozygous

Tags

NGSS.HS-LS3-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

_________ are used to solve genetic crossing of parents and possible offspring

Genetics

Punnett squares

Phenotypes

Probability

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Genetic Unit Review Exam

55 questions

Study of Heredity

Passing of traits from parent to offspring

different forms of a gene

describes an organism with two different alleles for a trait

an offspring that was given different genetic information for a trait from each parent

The graphic represents two parents that are_________ for a trait.

_________ are used to solve genetic crossing of parents and possible offspring

Two different alleles combine to form a pair of alleles that are -

One of a pair of genes that determines a specific trait.

The allele that is hidden unless paired with another allele of the same type

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