Exploring Dihybrid Genetic Cross Outcomes

The video tutorial explains a dihybrid cross, which involves crossing individuals with two differing traits. It describes the P generation with homozygous traits for pea color and shape, leading to the F1 generation where all offspring are round and yellow due to dominant traits. The F2 generation results in a 9:3:3:1 ratio of different pea traits, illustrating Mendel's law of independent assortment, which states that factors assort independently of other pairs of factors.

What does a dihybrid cross demonstrate?

• Results from crossing individuals with two different traits

• Crossing individuals with identical traits

• The outcomes of a monohybrid cross

• None of the above

Which traits were dominant in the F1 generation?

• Wrinkled and green

• Round and yellow

• Wrinkled and yellow

• Round and green

How many different gamete combinations can F1 generation plants produce?

• Three

• Two

• Five

• Four

How many types of gametes can the F1 generation produce?

• Two

• Four

• One

• Three

Which pea color and shape is recessive in the F2 generation?

• Wrinkled green

• Wrinkled yellow

• Round yellow

• Round green

What is the phenotypic ratio in the F2 generation?

• 9:3:3:1

• 1:9:3:3

• 3:3:1:9

• 3:1:3:9

What principle did Mendel conclude from the dihybrid cross experiment?

• Principle of Dominance

• Law of Segregation

• Law of Independent Assortment

• Law of Probability