Question

Norin-10 is famous for the
A. Gigas effect.
B. Dwarfine effect.
C. Aromatic effect.
D. Early maturation effect.

Answer 1

Hint:Norin 10 wheat is a semi-dwarf wheat cultivar with very large ears that was bred by Gonjiro.Norin 10 grew to just two feet tall, which made it less prone to wind damage. Norin 10 provided two very important genes, Rht1 and Rht2, which resulted in reduced-height of wheat’s, allowing better nutrient uptake and tillage.

Complete answer:
Cecil Salmon, a biologist and wheat expert collected 16 varieties of wheat including Norin 10, and sent these seeds to Orville Vogel.
They obtained the high-output varieties which were tested in India during the Green Revolution.
Norin 10 helped developing countries such as India and Pakistan, to increase the productivity of their crops by approximately 60% during the Green Revolution.
As we know, the plant grows only two feet tall and hence is less destroyed due to wind flow. This is known as the dwarfing effect.
Gigas effect: The gigas effect is often attributed to a larger volume of nuclear DNA that causes increase in cell size that results in an overall increase in organ size.
Early maturation effect: Early puberty is when a child's body starts to go through the change into an adult body too soon.
Puberty starts on average in girls between ages 8 and 13 and in boys between ages 9 and 14.

So, the correct answer is option B. Dwarfine effect.

Note: Dwarfing is a process in which a breed of animals or cultivator of plants is changed to become significantly smaller than standard members of their species.
The effect can be induced through human intervention or non-human processes, and can include genetic, nutritional or hormonal means.
Used most specifically, dwarfing includes pathogenic changes in the structure of an organism
For example: The bulldog.