16 Questions
What are the genotypes of the parents in the initial cross that Mendel performed in his pea plant experiment?
Purebred purple and white flower
What did Mendel observe in the F1 generation when he crossed the purebred purple and white flowers?
All offspring were purple
What was the phenotypic ratio observed in the F2 generation when Mendel crossed the F1 generation with each other?
3:1 purple to white flowers
What is the genotypic ratio when two heterozygous individuals are crossed with each other?
1:2:1 AA:Aa:aa
According to Mendel's law of segregation, what happens during the formation of gametes?
Each gene separates from each other
What does the law of independent assortment state regarding pairs of traits?
They segregate independently during gamete formation
What is hemophilia and what happens in individuals with this disorder?
Inherited bleeding disorder, blood does not clot properly
What can happen in individuals with hemophilia following injuries or surgery?
Spontaneous bleeding and bleeding following injuries or surgery
What is the term used to describe the initial parent generation in Mendel's experiments?
P generation
What is the ratio of purple to white flowers observed in the F2 generation when Mendel crossed the F1 purple-flowered plants?
3:1
What is the genotypic ratio when two heterozygous individuals are crossed with each other?
AA - 1/4, Aa - 1/2, aa - 1/4
Which of the following statements best describes Mendel's law of segregation?
Each gamete carries only one allele for each gene.
What is the term used to describe the second filial generation in Mendel's experiments?
F2 generation
What was the phenotype of the F1 generation when Mendel crossed the purebred purple and white flower plants?
All purple flowers
What is the term used to describe the first filial generation offspring in Mendel's experiments?
F1 generation
Which of the following best describes the law of independent assortment?
Alleles of one gene segregate independently from alleles of another gene during gamete formation.
Study Notes
Mendel's One-Trait Inheritance
- Parents are referred to as the P Generation.
- Offspring of the P Generation are called the First Filial Generation (F1).
- Offspring of the F1 Generation are called the Second Filial Generation (F2).
- Crossing purebred purple flowers with white flowers produces all purple flowers in the F1 Generation.
- Crossing the F1 Generation with each other produces purple flowers and white flowers in a 3:1 ratio.
- Homozygous dominant (AA) crossed with Homozygous recessive (aa) produces genotypes Aa and phenotypes Axial.
- Heterozygous (Aa) crossed with Heterozygous (Aa) produces genotypes AA, Aa, and aa, and phenotypes Axial and Terminal.
Mendel's Laws
- Mendel's Law of Segregation states that during gamete formation, each gene separates from each other, so each gamete carries only one allele for each gene.
Two-Trait Inheritance
- The law of independent assortment states that a pair of traits segregates independently of another pair during gamete formation.
Genetic Disorders
- Hemophilia is an inherited bleeding disorder where the blood does not clot properly.
- Hemophilia leads to spontaneous bleeding and bleeding following injuries or surgery.
- Blood contains many proteins called clotting factors that help to stop bleeding.
Test your knowledge on Mendel's one-trait inheritance in genetics, focusing on the P Generation, F1 and F2 generations, and the principles of dominant and recessive traits. Understand the results of specific crosses and the genotypes involved.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
