Genetics Quiz

Genetics Quiz

9th Grade

10 Qs

quiz-placeholder

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Genetics Quiz

Genetics Quiz

Assessment

Quiz

Biology

9th Grade

Practice Problem

Hard

Created by

Dana Marcum

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are alleles?

Segments of DNA that code for proteins

Alternative forms of a gene

Mutations in the genetic code

Different species of organisms

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many types of alleles are there?

1

3

4

2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between dominant and recessive alleles?

Dominant alleles are expressed when present in an individual's genotype, while recessive alleles are only expressed when paired with another recessive allele.

Dominant alleles are always harmful, while recessive alleles are always beneficial.

Dominant alleles are only expressed when paired with another dominant allele, while recessive alleles are always expressed.

Dominant alleles are more common in the population than recessive alleles.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a homozygous allele?

A pair of identical alleles for a particular gene.

A pair of different alleles for a particular gene.

An allele that is only present in females.

An allele that is only present in males.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a heterozygous allele?

A pair of genes where one is dominant and the other is recessive.

A pair of genes where both are dominant.

A pair of genes where one is neither dominant nor recessive.

A pair of genes where both are recessive.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a genotype?

The physical characteristics of an organism

The environment in which an organism lives

The behavior of an organism

The genetic makeup of an organism

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a phenotype?

Observable physical or biochemical characteristics of an organism

The process of cell division

The study of animal behavior

The genetic material of an organism

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