10 Questions
What does Mendel's Law of Independent Assortment state?
Segregation of one pair of characters is independent of the other pair of characters
What is the ratio of phenotypes round, yellow; wrinkled, yellow; round, green and wrinkled, green in the dihybrid cross?
9:3:3:1
What can be effectively used to understand the independent segregation of the two pairs of genes during a dihybrid cross?
Punnett square
What is the combination series for the ratio 9:3:3:1?
(3 Round: 1 Wrinkled) (3 Yellow: 1 Green)
What is the ratio observed for several pairs of characters studied by Mendel?
9:3:3:1
What is the ratio of phenotypes round, yellow; wrinkled, yellow; round, green and wrinkled, green in the dihybrid cross?
9:3:3:1
What is the basis for the ratio 9:3:3:1 in the dihybrid cross?
Combination series of 3 yellow; 1 green, with 3 round: 1 wrinkled
What did Mendel propose based upon observations on dihybrid crosses?
Mendel's Law of Independent Assortment
What can be effectively used to understand the independent segregation of the two pairs of genes during a dihybrid cross?
Punnett square
What does Mendel's Law of Independent Assortment state?
Segregation of one pair of characters is independent of the other pair of characters
Study Notes
Mendel's Laws and Dihybrid Crosses
- Mendel's Law of Independent Assortment states that different genes for different traits are sorted independently of each other during gamete formation.
- The ratio of phenotypes in a dihybrid cross is 9:3:3:1, which can be broken down into:
- 9: round, yellow
- 3: wrinkled, yellow
- 3: round, green
- 1: wrinkled, green
- A Punnett square can be effectively used to understand the independent segregation of the two pairs of genes during a dihybrid cross.
- The combination series for the ratio 9:3:3:1 is (3:1) × (3:1), which represents the combination of two independent segregation patterns.
- Mendel observed a ratio of 9:3:3:1 for several pairs of characters studied in his experiments.
- The 9:3:3:1 ratio in the dihybrid cross is based on the independent segregation of two pairs of genes, each with a 3:1 ratio.
- Based on his observations of dihybrid crosses, Mendel proposed that different genes for different traits are inherited independently of each other.
Test your understanding of the Law of Independent Assortment with this quiz. Challenge your knowledge of dihybrid crosses and the phenotypic ratios observed in Mendelian genetics.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
