Author: admin

16. A cross made between a pure breeding plant having red coloured flowers with a pure breeding plant having white coloured flowers. Such a cross is called as (1) test […]

15. Mendel during his experiment on garden pea observed F2 ratio of 3:1 on selfing round seed plants where 3 were round and 1 was wrinkle. If all round seed […]

14. During gamete formation, if there is no crossing over, the pair of alleles segregates during (1) Meiosis-I          (2) Meiosis-II (3) Mitosis             (4) Cleavage Core concept Mendel’s law of segregation says the […]

12. The Mendelian law of Independent assortment is due to arrangement of chromosome during (1) Metaphase-I        (2) Anaphase-I (3) Metaphase-II       (4) Anaphase-II Explanation: Mendel’s law of independent assortment states that […]

11. Possible types of gametes formation from genotype AABBCcDdEe would be- (1) 16           (2) 64 (3) 8             (4) 128 Step-by-step reasoning Genotype given: AABBCcDdEe A: AA → homozygous (only A […]

10. Possible combination of gametes which can be formed by genotype AaBbCcDdEeFfGg are? (1) 16              (2) 32 (3) 64              (4) 128 Step-by-step reasoning Genotype: AaBbCcDdEeFfGg Each gene is heterozygous (A/a, […]

9. In test cross, F1 progeny is crossed with (1) Either of the parent (2) Recessive parent (3) Dominant parent (4) Heterozygous parent Concept of a test cross A test cross is […]

8. All of the mendelian alleles for different trait showed (1) Epitasis (2) Co-dominance (3) Incomplete dominance (4) Dominance and recessiveness Explanation: In Mendel’s classic pea plant experiments (seed shape, […]

7. Typical mendelian dihybrid ratio for F2 generation is- (1) 9:3:3:1            (2) 9:7 (3) 1:2:1               (4) 9:7 Dihybrid Cross: 9:3:3:1 Ratio Genes and Alleles A dihybrid cross tracks two genes, […]