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Class 12 Biology Practice Test: Principles of Inheritance and Variation - Inheritance of One Gene
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Class 12 Biology Practice Test: Principles of Inheritance and Variation - Inheritance of One Gene
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25 Questions

1. Self-pollination of F1 progeny will result in a new filial generation called _______
2. Based on his experiments on pea plants, what were the things that he suspected of being transferred across generations?
3. If VV produces violet flowers and vv produces white flowers, what will be the phenotype and genotype of the F1 progeny?
4. What are the possible phenotypes that can be observed after self-crossing violet flowered pea plants?
5. What is the cross between VV and vv called?
6. The presence of two different alleles at a particular locus results in _________
7. What are the copies of genes that code for different phenotypes called?
8. During meiosis, what happens to the parental alleles?
9. What should be the phenotype of a cross between violet and white-flowered true-breeding garden pea plants?
10. What process needs to be avoided for carrying of efficient crosses?
11. What is the process of removal of anthers termed?
12. Which zygosity has the same allelic pair of genes?
13. In Mendelian crosses, the F2 progeny exhibits a recessive phenotype and a blended phenotype.
14. What kind of a process is the segregation of alleles during meiosis?
15. With green pods as a dominant trait over yellow, which of the following crosses will result in all progeny having yellow pods?
16. The factor which expresses in homozygous and heterozygous states is called _______
17. The factor expressed only in homozygous state is called _________
18. A plant that exhibits two alleles for only one trait is called ________
19. Which of the following was not observed in F2 progeny of true-breeding tall and dwarf plants?
20. What does F in “F1 progeny” stand for?
21. What is the generation of plants produced by the crossing of true-breeding plants called?
22. I = Inflated, i = constricted. Given that the phenotype of F1 progeny is inflated pods and that the parents are true-breeding, which of the following is not a possible genotype of parents?
23. What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?
24. If the F1 generation produced by a cross between axial and terminal flower-bearing plants produces only axial flowers, the F2 progeny produced by the self-crossing of F1 will also produce only axial flowers.
25. The cross of true-breeding yellow and green seeded pea plants can only produce yellow seeded progeny.

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