Principles of Inheritance - Mendel's Laws, Monohybrid & Dihybrid Cross

Grade 12 Biology — Principles of Inheritance - Mendel's Laws, Monohybrid & Dihybrid Cross: 25 practice questions with instant scoring and explanations.

1. Mendel's law of segregation states that:
2. In a monohybrid cross between Aa x Aa, what is the phenotypic ratio?
3. A dihybrid cross involves:
4. The expected phenotypic ratio in a dihybrid cross (AaBb x AaBb) is:
5. Mendel's law of independent assortment applies to:
6. If both parents are heterozygous for a trait (Aa x Aa), the probability of homozygous recessive offspring is:
7. In a test cross, the heterozygous individual is crossed with:
8. The genotypic ratio of a monohybrid cross (Aa x Aa) is:
9. Mendel conducted his experiments on which plant?
10. The term 'allele' refers to:
11. A dominant trait will be expressed in:
12. In a cross AaBb x aabb, the expected ratio is:
13. Which of Mendel's laws explains why traits from both parents appear in offspring?
14. The probability of getting three dominant offspring from three heterozygous crosses is:
15. If a trait is recessive, it can only be expressed when:
16. A Punnett square is used to:
17. The F1 generation results from crossing:
18. In a dihybrid cross, if genes assort independently, they are located:
19. The trait that appears in the F1 generation when crossing pure-breeding parents is:
20. Mendel's principle of segregation occurs during:
21. If the phenotypic ratio in an F2 generation is 3:1, the F1 cross was most likely:
22. The law of independent assortment was based on Mendel's experiments with:
23. In a testcross of AaBb individual, the number of different gamete types produced is:
24. Pure-breeding line is also known as:
25. The concept of genes as particulate units was established by: