DNA – The Molecule of Life

7 Topics | 6 Quizzes

1 | Chromosomes

Chromosomes – Topic Quiz

2 | Chromosomes in Body Cells

Chromosomes in Body Cells – Topic Quiz

3 | Chromosomes in Sex Cells

Chromosomes in Sex Cells – Topic Quiz

4 | Chromosome Sets

Chromosome Sets – Topic Quiz

5 | Autosomal Chromosomes and Sex Chromosomes

Autosomal Chromosomes and Sex Chromosomes – Topic Quiz

6 | Sex Determination in Humans

Sex Determination in Humans – Topic Quiz

7 | Summary

Cell Division – DNA Replication, Mitosis and Meiosis

5 Topics | 4 Quizzes

1 | Cell Division

Cell Division – Topic Quiz

2 | DNA Replication

DNA Replication – Topic Quiz

Asexual and Sexual Reproduction

5 Topics | 4 Quizzes

1 | Biological Reproduction

Biological Reproduction – Topic Quiz

2 | Asexual Reproduction

Asexual Reproduction – Topic Quiz

3 | Sexual Reproduction

Sexual Reproduction – Topic Quiz

4 | The Human Life Cycle

The Human Life Cycle – Topic Quiz

5 | Summary

Genes, Genotype and Phenotype

7 Topics | 6 Quizzes

1 | Heredity

Heredity – Topic Quiz

5 | Homozygosity and Heterozygosity

Homozygosity and Heterozygosity – Topic Quiz

6 | Genotype and Phenotype

Genotype and Phenotype – Topic Quiz

7 | Summary

Dominance, Incomplete Dominance and Codominance

4 Topics | 3 Quizzes

1 | Phenotype of Heterozygous Individuals

Phenotype of Heterozygous Individuals – Topic Quiz

2 | Dominant and Recessive Inheritance

Dominant and Recessive Inheritance – Topic Quiz

3 | Incomplete Dominance and Codominance

Incomplete Dominance and Codominance – Topic Quiz

4 | Summary

Sex-Linked Inheritance

5 Topics | 4 Quizzes

1 | Sex-Linked Traits

Sex-Linked Traits – Topic Quiz

2 | X-Linked Inheritance in Males and Females

X-Linked Inheritance in Males and Females – Topic Quiz

3 | Y-Linked Inheritance in Males and Females

Y-Linked Inheritance in Males and Females – Topic Quiz

4 | Writing Genotypes for Sex-Linked Traits

Writing Genotypes for Sex-Linked Traits – Topic Quiz

5 | Summary

Punnett Squares

5 Topics | 4 Quizzes

1 | Introduction to Punnett Squares

Introduction to Punnett Squares – Topic Quiz

2 | Steps for Completing a Punnett Square

Steps for Completing a Punnett Square – Topic Quiz

3 | Punnett Squares for Incomplete Dominance and Codominance

Punnett Squares for Incomplete Dominance and Codominance – Topic Quiz

4 | Punnett Squares for Sex-Linked Traits

Punnett Squares for Sex-Linked Traits – Topic Quiz

5 | Summary

Mendelian Genetics

6 Topics | 5 Quizzes

1 | Gregor Mendel

Gregor Mendel – Topic Quiz

2 | Pure Breeding Lines and Cross-Pollination

Pure Breeding Lines and Cross-Pollination – Topic Quiz

3 | Monohybrid Cross

Monohybrid Cross – Topic Quiz

4 | Explaining a Monohybrid Cross Using Punnett Squares

Explaining a Monohybrid Cross Using Punnett Squares – Topic Quiz

5 | Test Cross

Test Cross – Topic Quiz

6 | Summary

Pedigree Charts

10 Topics | 9 Quizzes

1 | Introduction to Pedigree Charts

Introduction to Pedigree Charts – Topic Quiz

2 | Representing Individuals on a Pedigree Chart

Representing Individuals on a Pedigree Chart – Topic Quiz

3 | Representing Relationships on a Pedigree Chart

Representing Relationships on a Pedigree Chart – Topic Quiz

4 | Pedigree Charts and Modes of Inheritance

Pedigree Charts and Modes of Inheritance – Topic Quiz

5 | Autosomal Dominant Inheritance

Autosomal Dominant Inheritance – Topic Quiz

6 | Autosomal Recessive Inheritance

Autosomal Recessive Inheritance – Topic Quiz

7 | X-linked Dominant Inheritance

X-linked Dominant Inheritance – Topic Quiz

8 | X-linked Recessive Inheritance

X-linked Recessive Inheritance – Topic Quiz

9 | Interpreting Pedigree Charts

Interpreting Pedigree Charts – Topic Quiz

10 | Summary

Genetic Mutation

6 Topics | 5 Quizzes

1 | Overview of Genetic Mutations

Overview of Genetic Mutations – Topic Quiz

2 | Chromosomal Mutations and DNA Mutations

Chromosomal Mutations and DNA Mutations – Topic Quiz

3 | Spontaneous Mutations and Induced Mutations

Spontaneous Mutations and Induced Mutations – Topic Quiz

4 | Somatic Mutations and Gametic Mutations

Somatic Mutations and Gametic Mutations – Topic Quiz

5 | Harmful, Beneficial and Neutral Mutations

Harmful, Beneficial and Neutral Mutations – Topic Quiz

6 | Summary

Genetic Variation and Change

8 Topics | 7 Quizzes

1 | Genetic Variation

Genetic Variation – Topic Quiz

2 | Genetic Variation Within Populations

Genetic Variation Within Populations – Topic Quiz

3 | Sources of Genetic Variation

Sources of Genetic Variation – Topic Quiz

4 | Natural Selection

Natural Selection – Topic Quiz

5 | Adaptation of Populations

Adaptation of Populations – Topic Quiz

6 | Genetic Variation and Survival

Genetic Variation and Survival – Topic Quiz

7 | Artificial Selection

Artificial Selection – Topic Quiz

8 | Summary

Evolution – The Process

9 Topics | 8 Quizzes

1 | Darwinian Evolution

Darwinian Evolution – Topic Quiz

2 | Overview of the Process of Evolution

Overview of the Process of Evolution – Topic Quiz

3 | Genetic Variation in Populations

Genetic Variation in Populations – Topic Quiz

4 | Reproductive Isolation of Populations

Reproductive Isolation of Populations – Topic Quiz

5 | Natural Selection, Genetic Drift and New Mutations

Natural Selection, Genetic Drift and New Mutations – Topic Quiz

6 | Speciation

Speciation – Topic Quiz

7 | Phylogenetic Trees

Phylogenetic Trees – Topic Quiz

8 | Some Misconceptions About Evolution

Some Misconceptions About Evolution – Topic Quiz

9 | Summary

Evolution – The Evidence

6 Topics | 5 Quizzes

1 | The Evidence for Evolution

The Evidence for Evolution – Topic Quiz

2 | The Fossil Record

The Fossil Record – Topic Quiz

3 | Comparative Anatomy

Comparative Anatomy – Topic Quiz

4 | Biogeography

Biogeography – Topic Quiz

5 | Molecular Biology

Molecular Biology – Topic Quiz

6 | Summary

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6 | The Genetic Code

Year 10 Biology DNA – The Molecule of Life 6 | The Genetic Code

The Genetic Code

The order of the four different nucleotides in DNA molecules, known as a DNA sequence, determines the genetic make-up of an organism.

This ‘genetic code’ is the same for all organisms. Therefore, DNA differentiates not only individuals of a species, but all living things on Earth.

The genetic code works in much the same way as the 26 letters of the English alphabet, which code for all the English-language books that exist.

genetic code dna sequence

The sequence of nucleotides in DNA encodes the genetic make-up of all living things.

(Image: schulergd, freeimages.com)

Quizzes

The Genetic Code – Topic Quiz

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Year 10 Biology

6 | The Genetic Code

6 | The Genetic Code

The Genetic Code

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