Answer: 2).it will result in an incomplete protein that does not function properly
Explanation: A codon is a triplet of nucleotide in an mRNA that codes for a particular amino acid. Some amino acids are specified by more than one codon. UAC and UAA are examples of codons found in an mRNA. UAC specifies amino acid tyrosine while UAA does not specify any amino acid and signals the end of translation, it is therefore called a stop codon. When a stop codon is encountered during translation, protein synthesis will be inhibited and this will result in a nonfunctional protein with incomplete amino acid sequence.
Molecules only move across the blood - air barrier if there is a difference in concentration.
So I think that nothing would happen!
FRuit and flower producer