The process of copying genetic information from DNA to mRNA is called: MCQ with Answer and Explanation

Explanation:
Plasma makes up ~55% of blood; albumin is the main protein. Mature human RBCs are anucleate. So 3 is incorrect.

Explanation:
Fossils are the preserved remains or traces of ancient organisms, providing direct, chronological evidence of evolutionary changes and past life forms over millions of years. Homologous organs (like the forelimbs of humans, whales, and bats) share a common structural plan and evolutionary origin, indicating divergent evolution from a common ancestor. Analogous organs (like the wings of birds and insects) perform similar functions but have different structural plans and evolutionary origins, indicating convergent evolution, not common ancestry. Thus, statements 1 and 2 are correct.

Explanation:
Pellagra is caused by a severe deficiency of Vitamin B3 (Niacin) or its precursor, the amino acid tryptophan. The classic symptoms are the '4 Ds': dermatitis (symmetrical, pigmented rash on sun-exposed skin), diarrhea, dementia (neurological symptoms), and eventually death if untreated. It is historically associated with diets heavily reliant on untreated corn (maize), which has low bioavailable niacin and tryptophan.