Mendelian and Non-Mendelian Genetics

In this video, Travis Spiver and his son Jordan Spocky introduce the concepts of Mendelian and non-Mendelian genetics, focusing on the differences between them. They explain how Mendelian genetics involves dominant and recessive alleles, while non-Mendelian genetics includes multiple alleles and polygenes. The video also covers incomplete dominance, where alleles blend, and codominance, where both alleles are fully expressed. Examples are provided using flower colors. The video concludes with a quiz to test understanding and encourages viewers to subscribe for more content.

What are the main topics covered in today's video?

• The water cycle

• Mendelian and non-Mendelian genetics

• Photosynthesis and cellular respiration

• Newton's laws of motion

In Mendelian genetics, how are traits passed from parents to offspring?

• Via environmental factors

• Through random mutation

• Through blending of alleles

• By dominant and recessive alleles

Which of the following is a characteristic of non-Mendelian genetics?

• Only two alleles are involved

• Multiple alleles or polygenes are involved

• Phenotypic outcomes are easily predictable

• Traits are passed by dominant and recessive alleles

What is an example of a non-Mendelian genetic pattern?

• Incomplete dominance

• Law of segregation

• Law of independent assortment

• Law of dominance

In incomplete dominance, what happens when a red flower is crossed with a white flower?

• The offspring are all red

• The offspring are all white

• The offspring show both red and white

• The offspring are pink

What is the result of incomplete dominance in terms of phenotype?

• A blend of both alleles

• Neither allele is expressed

• Both alleles are expressed separately

• Only one allele is expressed

In codominance, how are the alleles expressed in the phenotype?

• Both alleles are blended

• Only one allele is visible

• Both alleles are fully expressed

• Neither allele is expressed

What is an example of codominance in flowers?

• A flower showing both red and white

• A flower that is pink

• A flower that is entirely white

• A flower that is entirely red

How does codominance differ from incomplete dominance?

• Codominance involves blending of traits

• Incomplete dominance shows both traits separately

• Codominance shows both traits separately

• Incomplete dominance involves only one trait

Which genetic pattern involves both alleles being fully expressed in the phenotype?

• Mendelian genetics

• Incomplete dominance

• Codominance

• Polygenic inheritance