16. Two genes a and b are located at a distance of 10 cM. Individuals of the genotype AaBb are sib-mated. The two genes are linked in trans. What percentage […]
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Genetic Mapping and Probability of Aabb Progeny in AaBb Test Cross
15. Genetic mapping reveals that distance between two genes ‘A’ and ‘B’ is 10 cM. What is chance of getting Aabb progeny if AaBb is test crossed? (1) 5 & […]
How to Calculate Recombination Frequency from a Test Cross in Genetics
14. A plant with genotype r+h+/ r– h– was test crossed. Out of total 280 progeny 260 are r+h+/ r–h– and r–h–/r–h–. The recombination frequency will be (1) 92.8 (2) […]
Probability of aabb progeny after selfing Ab/aB
13. The distance between gene A and B is 10 cM. If a genotype A b is selfed, the a B percentage of progeny with genotype aabb will be (1) […]
Test Cross Problem
12. Distance between the two linked genes A and B is 20 cM. On test cross of A b a B with recessive parent how many offspring will have genotype […]
Probability of Obtaining AB/ab Genotype When Distance Between Gene A and B Is 10 cM
11. Distance between gene A and B is 10 cM. If the F1 genotype A B was test a b crossed then what is probability of obtaining A B genotype […]
How to Calculate Distance Between Genes from Recombinant Gametes Percentage
10. After meiosis the 20 % gametes are recombinant for two genes. The distance between two genes will be (1) 5 Cm (2) 10 cM (3) 20 cM […]
Impact of Heterochromatin on Recombination Frequency and Gene Distance Relationship
9. Direct correlation between recombination frequency and distance between genes can be disturbed by presence of (1) Heterochromatin (2) Exons (3) Introns (4) Euchromatin Introduction: In genetics, recombination frequency is […]
Number of Haploid Chromosome Sets in an Organism with 12 Linkage Groups
In an organism if number of linkage group is 12, then the number of haploid set of chromosome is (1) 12 (2) […]
Number of Linkage Groups in Human Male Explained
7. In number of linkage groups present in human male is: (1) 21 (2) 22 (3) 23 (4) 24 The number of linkage groups present in a human male is […]


