Question

Kinetin, a modified form an adenine was discovered from
Option A- Autoclaved herring sperm DNA
Option B- Coconut milk
Option C- Corn kernel
Option D- Fungus

Answer 1

Hint: Kinetin is a modified form of adenine, it was discovered by Miller and Skoog. Kinetin is a compound used in cell division in plants and is similar to kinin. It is a plant hormone that helps in cell division.

Complete answer:
Kinetin is a cytokinin that helps plants to grow. Kinetin has other uses also such as in medicinemaking, used to reduce skin ageing effects, reduce wrinkles and roughness etc. It is the first cytokinin to be discovered by Carlos Miller and Folke Skoog in 1955.

Option A- Autoclaved herring sperm DNA – Kinetin was discovered as a compound from autoclaved herring sperm DNA. Herring is a fish from which DNA is taken and sterilized with steam at high pressure and thus known as autoclaved herring sperm DNA.

Option B- Coconut milk- It is extracted from mature coconuts. It is milky white opaque liquid. Kinetin was not discovered from coconut milk.

Option C- Corn kernel: These are fruits of cor. These are used in cooking as they are a rich source of starch. One ear of corn has 800 corn kernels on it. Kinetin was not discovered from it.

Option D- Fungus: Fungus is a wide kingdom to explore and kinetin is isolated from sperm DNA of a fish known as herring not any fungus.

So our correct answer is option A- Autoclaved herring sperm DNA.

Note: Herring Fish belong to family Clupeidae. These fishes move in large schools mostly. These are prey fishes which are preyed by larger predators for food. It is silvery coloured fish that have a protruding lower jaw.