Genetics Terminology and Concepts

The video tutorial introduces key genetics vocabulary, focusing on terms like heredity, alleles, and traits. It highlights Gregor Mendel's contributions to genetics through his pea plant experiments. The tutorial explains dominant and recessive alleles, genotype and phenotype, and the concepts of homozygous and heterozygous genotypes. Resources for further study are available on Canvas.

What is the primary focus of the genetics vocabulary introduction?

• To provide key terminology for the genetics unit

• To explain the history of genetics

• To discuss genetic disorders

• To introduce famous geneticists

Who is known as the father of genetics?

• Francis Crick

• James Watson

• Gregor Mendel

• Charles Darwin

What did Gregor Mendel use for his genetic experiments?

• Fruit flies

• Mice

• Corn plants

• Pea plants

What does the term 'heredity' refer to?

• The mutation of genes

• The structure of DNA

• The passing of traits from parent to offspring

• The study of cells

How is an allele typically represented in biology?

• By a single letter

• By a color

• By a shape

• By a number

What is a dominant allele?

• An allele that is always expressed

• An allele that is never expressed

• An allele that is expressed only in the presence of another dominant allele

• An allele that is expressed only in the presence of a recessive allele

When is a recessive allele expressed?

• When it is alone

• When it is paired with a dominant allele

• When there are two copies of it

• When it is mutated

What does the term 'genotype' refer to?

• The behavior of an organism

• The physical appearance of an organism

• The genetic code of an organism

• The environment of an organism

What is the difference between homozygous and heterozygous genotypes?

• Homozygous is always recessive, heterozygous is always dominant

• Homozygous is always dominant, heterozygous is always recessive

• Homozygous has the same alleles, heterozygous has different

• Homozygous has different alleles, heterozygous has the same

What does 'phenotype' refer to?

• The evolutionary history of an organism

• The cellular structure of an organism

• The physical traits of an organism

• The genetic makeup of an organism