8th Grade Genetics Quizzes , Questions & Answers

Recent Genetics Quizzes

Welcome to the electronic science frontier of the 21st century classroom. In the past 25 years, the science of genetics has undergone major changes, both in how it is understood and how it is practiced. Using lasers,...

Questions: 30 | Attempts: 149 | Last updated: Mar 19, 2025

Sample Question
Each nucleotide in a DNA molecule consists of a:

Sulfur group, five-carbon sugar, and nitrogen base

Phosphate group, six-carbon sugar, and nitrogen base

Phosphate group, five-carbon sugar, and oxygen base

Phosphate group, five-carbon sugar, and nitrogen base

B1 End Of Topic Test

A test to see how much you know about the 21st Century Science topic B1: You and Your Genes.

Questions: 24 | Attempts: 449 | Last updated: Oct 9, 2025

Sample Question
Which of Steve's sex chromosomes did he inherit from his mother?

X

Y

Both

Neither

Genetic Vocabulary Words 1

Explore foundational genetics with 'Genetic Vocabulary Words 1'. This quiz covers basic concepts such as genes, chromosomes, DNA, and heredity, and acknowledges Gregor Mendel's contributions. Ideal for learners enhancing their...

Questions: 20 | Attempts: 883 | Last updated: Oct 9, 2025

Sample Question
The Basic unit of heredity that consist of a segment of DNA on a chromosome is a

Heredity

Gene

Offspring

Dominant

Biology: Chromosome Trivia Quiz Questions! Test

Explore chromosome fundamentals with the Biology: Chromosome Trivia Quiz! Engage with questions on diploid numbers in various species, from aquatic fish to garden plants, enhancing your understanding of genetic structures.

Questions: 25 | Attempts: 392 | Last updated: Mar 19, 2025

Sample Question
What is the number of diploid chromosomes found in this animal? It also appeared in the movie Doctor Dolittle II.

20

40

60

80

What Are The Genotype and Phenotype? Quiz

Explore the fundamentals of genetics in this quiz focused on genotype and phenotype. Questions cover Mendel's experiments, dominance, monohybrid and dihybrid crosses, and the inheritance of traits. This quiz is ideal for learners...

Questions: 36 | Attempts: 637 | Last updated: Apr 20, 2025

Sample Question
Pea plants were particularly well suited for use in Mendel's breeding experiments for all of the following reasons except that

Peas show easily observed variations in a number of characters, such as pea shape and flower color.

Many of the observable characters that vary in pea plants are controlled by single genes.

Peas have an unusually long generation time.

It is possible to control matings between different pea plants.

It is possible to obtain large numbers of progeny from any given cross.

8th Grade Science Test Review

This is a practice test designed to help you with your test on Tuesday.

Questions: 25 | Attempts: 1771 | Last updated: Mar 21, 2025

Sample Question
An organelle enclosed in a membrane that contains DNA.

Cytoplasm

Cell wall

Chromosome

Nucleus

Genetic Variation Test

This Genetic Variation Test assesses knowledge on chromosome structure, DNA, and gametes. It covers key concepts such as the number of chromosomes in human cells and the structure of DNA, enhancing understanding of human genetics.

Questions: 25 | Attempts: 5458 | Last updated: Feb 22, 2025

Sample Question
All human BODY CELLS contain this many chromosomes

23

46

8

45

Genetics Basic Questions! Quiz

Genetics is the study of heredity from parents to their offspring. Over the past few weeks, we have been able to cover the basics of this course, and I have prepared so questions that will help you see just attentive you have...

Questions: 5 | Attempts: 1831 | Last updated: Mar 21, 2025

Sample Question
When the alleles are the same they are called...

Heterozygous

Homozygous

Dominant

Recessive

Variations In Human Skin Color

Use with SciLink Activity http://www.sciencenetlinks.com/Esheet.php?DocID=158

Questions: 16 | Attempts: 182 | Last updated: Mar 14, 2025

Sample Question
Resource #1 1. What are some traits that people share? Check three.

Environmental factors like sunlight, temperature and food supply.

Males and females have similar sexual characteristics with others of their gender.

Relatives share similarities in appearance due to their common genetic make up.

People with ancestors from the same regions of the world often share similar physical characteristics like skin, hair color, facial characteristics, body shape, and stature.

Trivia Quiz On Genetics Revision

Have you been keeping your nose in a book and revising the knowledge you’ve been picking up on genetics at school? You might think you know your stuff, but we’ll see if you can put your money where your mouth is in...

Questions: 8 | Attempts: 2209 | Last updated: Sep 8, 2025

Sample Question
What is a dominant allele?

A dormant gene that is never expressed

The allele that will always be expressed if present

The allele that will only be expressed if there are two present

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