NEETBotanySexual Reproduction in Flowering Plants
Seed/Pollen Viability A. Pollen(Solanaceae) 1. 2000 years B. Seed(Lupinus Articus) 2. 30 minutes C. Seed(Phoenix Dactifera) 3. Few months D. Pollen(rice) 4. 10,000 years
Options
- AA -4 , B -2 , C -1 , D - 3
- BA - 2, B - 4, C - 1, D - 3
- CA -3 , B -1 , C -4 , D - 2
- DA - 3, B - 4, C - 1, D -2
Correct answer
D. A - 3, B - 4, C - 1, D -2
Step-by-step solution
In some cereals such as rice and wheat, pollen grains lose viability within 30 minutes of their release, and in some members of Rosaceae, Leguminoseae and Solanaceae, they maintain viability for months -The oldest is that of a lupine, Lupinus arcticus excavated from Arctic Tundra. The seed germinated and flowered after an estimated record of 10,000 years of dormancy. A recent record of 2000 years old viable seed is of the date palm, Phoenix dactylifera discovered during the archeological excavation at King Herod’s