Basic Science : Genetics Linkage And Crossing Over QUESTIONS AND ANSWERS :: part1 : 26 to 30
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
26.Crossing Over occurs when the homologous chromosomes contain |
| One chromatid |
| Two chromatid |
| Four chromatid |
| Eight chromatid |
27.The ratio obtained by Bateson and Punnet when they test crossed second time between blue long and red round in sweet pea |
| 7:1:1:7 |
| 1:1:1:1 |
| 1:7:7:1 |
| 9:3:3:1 |
28.The ratio observed by Bateson and Punnet when they test crossed in sweet pea between BbLl and bbll was |
| 9:3:3:1 |
| 9:7 |
| 7:1:1:7 |
| 12:3:1 |
29.The number of Chromosomal pairs in Drosophila melanogaster is |
| 1 pair |
| 2 pair |
| 3 pair |
| 4 pair |
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