Genetics

The video tutorial introduces Gregor Mendel and his foundational work in genetics, focusing on Mendelian genetics. It explains basic genetic terms, such as monohybrid and dihybrid crosses, independent assortment, and segregation. The tutorial also covers how to use Punnett squares to solve genetic problems, emphasizing the importance of understanding probability in genetics.

Who is credited with the foundational ideas of genetics?

• Charles Darwin

• James Watson

• Francis Crick

• Gregor Mendel

What is a monohybrid cross?

• A cross involving two traits

• A cross involving one trait

• A cross involving four traits

• A cross involving three traits

What does independent assortment refer to?

• Genes being linked

• Genes segregating together

• Genes affecting each other

• Genes assorting independently

What is the purpose of a test cross?

• To determine the mutation rate

• To determine the chromosome number

• To determine the genotype

• To determine the phenotype

What does a Punnett square help predict?

• The number of chromosomes

• The genetic makeup of offspring

• The mutation rate

• The lifespan of an organism

How many genotypes are possible in a monohybrid cross of heterozygous parents?

• One

• Two

• Three

• Four

What is the probability of getting a recessive phenotype from a heterozygous cross?

• 0%

• 25%

• 50%

• 75%

What is the probability of flipping a coin and getting heads?

• 25%

• 0%

• 100%

• 50%

What does homozygous mean?

• Having two different alleles

• Having two identical alleles

• Having three alleles

• Having no alleles

What is the probability of producing green seeds from a cross of heterozygous parents?

• 0%

• 25%

• 75%

• 50%