Given the original mRNA codon “UAC”, what is an example of a mRNA codon that would result in a silent mutation?

In mutation 1, the codon CUC changes to CUU. As both the codons code for the same amino acid i.e., leucine, thus, this mutation is silent mutation and does not affect individual having it.

In mutation 2, a base G is inserted between codons CAU and CUU and changes the frame of reading of genetic code and changes the entire polypeptide coded by it. It is a frameshift mutation.

In mutation 3, codon UAC is changed into a termination codon UAA which stops polypeptide synthesis, hence such type of mutation is called nonsense mutation.

So, the correct answer is 'Silent mutation → 4 Frameshift mutation → Nonsense mutation'.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.

most community's take hundreds of years to become stable