Which statement correctly describes proteins? A
Polypeptide chains are formed in the nucleus.

B
DNA is the original source of protein structure.

C
The function of a protein is determined by the RNA.

D
Each nucleotide base is encoded into a single amino acid.

B

Explanation:

A - not correct since polypeptide chains are formed in ribosomes which exist in the cytoplasm

C. not correct -protein function is determined by DNA

D.  not correct - 3 nucleotides aka a codon is encoded into a single amino acid.

the organisms are not adapted to live in some communities or habitats.

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.