What portion of a pre-mRNA molecule may be cut to be discarded?
ans:- In eukaryote cells the primary transcript (pre-mRNA) is processed. One or more sequences (introns) are cut out.
Answer: ribosomal RNA (rRNA)-aids translation
messenger RNA (mRNA)-gives message
tRNA-transfers amino acids
Explanation:RNA is ribonucleic acid and its of three main types in human with specific function.
tRNA- Transfer ribonucleic acid is located in the cytoplasm and helps in the transfer of amino acid to the appropriate base sequence/nuclotide bases during translation
mRNA - messanger RNA carried genetic information form the nucleus the cell to the ribosome.
It helps read and transform the bases into a protein.
rRNA-ribosomal RNA is located in the ribosme and aids transcriotion of nucleotide bases into protein.
14.) D
15.) C
I'm sitting in school right now I cannot really answer the rest.