Genetics Vocabulary Mastery

This video tutorial introduces key genetic vocabulary, focusing on the study of heredity. It explains the structure and function of DNA, the role of genes and alleles, and the differences between genotype and phenotype. The tutorial also covers various modes of inheritance, including complete dominance, incomplete dominance, codominance, and multiple alleles, providing examples to illustrate these concepts.

What is the study of heredity called?

• Genetics

• Biology

• Anatomy

• Ecology

Tags

NGSS.MS-LS3-2

What is DNA primarily responsible for?

• Providing energy

• Building and maintaining the body

• Digesting food

• Circulating blood

Tags

NGSS.MS-LS3-1

What are alleles?

• Different versions of a gene

• Sections of DNA

• Types of cells

• Proteins in the body

Tags

NGSS.MS-LS4-4

Which of the following is an example of a gene?

• Brown eyes

• Short

• Tall

• Height

What does the term 'genotype' refer to?

• Type of cell

• Physical appearance

• Combination of alleles

• DNA sequence

What does 'phenotype' describe?

• Genetic code

• Protein function

• Physical appearance

• Cell structure

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

What does 'homozygous' mean?

• Having no alleles

• Having two identical alleles

• Having two different alleles

• Having one allele

What is a dominant allele?

• An allele that overshadows a recessive allele

• An allele that is always recessive

• An allele that is hidden

• An allele that is not expressed

In incomplete dominance, what happens in the heterozygous form?

• Both traits are hidden

• Both traits mix to create a blended trait

• One trait completely dominates

• Neither trait is expressed

What is codominance?

• Neither trait is expressed

• Both traits are equally expressed

• One trait overshadows the other

• Both traits mix to create a new trait