Mendel's Laws - Segregation and Independent Assortment - Unsolved Practice Set
Chapter: Principles of Inheritance and Variation | Topic: Mendels Laws Segregation and Independent Assortment
MENDEL'S LAWS - SEGREGATION AND INDEPENDENT ASSORTMENT - UNSOLVED PRACTICE SET
Topic: Mendels Laws Segregation and Independent Assortment
Multiple Choice Questions
Q1. Mendel conducted his classic experiments on:
- Fruit flies
- Garden pea plants
- Guinea pigs
- Maize
Q2. According to the Law of Segregation, the two alleles of a gene:
- Always blend together
- Separate from each other during gamete formation
- Combine to form new alleles
- Are destroyed during meiosis
Q3. The Law of Independent Assortment applies when studying:
- A single trait
- Two or more traits located on different chromosomes
- Traits on the same chromosome only
- Sex-linked traits only
Q4. In Mendel's monohybrid cross, the trait that appeared in the F1 generation was called the:
- Recessive trait
- Dominant trait
- Codominant trait
- Intermediate trait
Q5. A pea plant with genotype Tt is described as:
- Homozygous dominant
- Homozygous recessive
- Heterozygous
- Hemizygous
Short Answer Questions
Q6. State Mendel's Law of Dominance in your own words.
Q7. Why did Mendel choose the garden pea plant for his experiments? Mention any one reason.
Q8. Differentiate between genotype and phenotype with a simple example.
Q9. What is meant by a "true-breeding" (homozygous) line in genetics?
Long Answer Questions
Q10. Explain Mendel's Law of Segregation with reference to a monohybrid cross, describing what happens to the alleles during gamete formation.
Q11. Describe Mendel's Law of Independent Assortment, explaining how it specifically applies to a dihybrid cross.
APPLICATION / ANALYSIS
Q12. In a family, a child inherits one allele for height from each parent. If the father is homozygous tall (TT) and the mother is homozygous short (tt), work out the genotype and phenotype of their children in the F1 generation, explaining your reasoning based on Mendel's laws.
Q13. A gardener crosses a pea plant with round, yellow seeds (RRYY) with one having wrinkled, green seeds (rryy). Using Mendel's Law of Independent Assortment, predict the seed types expected in the F2 generation and their approximate ratio.