Vitamin E is primarily known for its role as a: MCQ with Answer and Explanation

Explanation:
The Leghorn (specifically the White Leghorn) is a highly popular and productive breed of chicken originating from Tuscany, Italy. It is primarily reared as a layer breed for commercial egg production due to its high egg yield, early maturity, and efficient feed conversion. It is not typically used for meat production (broilers like Cornish Cross are preferred for that) or as cattle. Rhode Island Red is another dual-purpose breed, but Leghorn is specifically famous for eggs.

Explanation:
DNA contains adenine, guanine, cytosine, and thymine. RNA contains uracil instead of thymine. This is one of the key differences between DNA and RNA. Uracil pairs with adenine in RNA. The base pairing in DNA is A-T and G-C. In RNA, it is A-U and G-C. Uracil lacks the methyl group present in thymine.

Explanation:
Apoptosis is a genetically controlled, energy-dependent process of programmed cell death that removes unwanted, damaged, or infected cells without causing inflammation. It is vital for development (e.g., separation of digits in fingers) and tissue homeostasis. Necrosis is traumatic cell death causing inflammation. Autolysis is self-digestion after death, phagocytosis is engulfment.