Which of the following mutations could result in a truncated protein? Choose all that apply. Which of the following mutations could result in a truncated protein? Choose all that apply. A one base pair frameshift A two base pair frameshift A nonsense mutation that changes a cysteine to a stop codon A chromosomal-level insertion A missense mutation that changes a phenylalanine to a leucine A chromosomal-level deletion An in-frame removal of three base pairs

A truncated protein refers to a protein that gets shortened due to a mutation, which does not allow the process of translation to take place properly. The formation of a truncated protein can take place due to a frameshift mutation of one or two base pairs. In such kind of mutation, a single or two base pairs get withdrawn from the sequence resulting in the formation of a completely changed triplicate codon sequence, which may result in the generation of a truncated protein comprising a different set of amino acids.  

A nonsense mutation can also result in the formation of a truncated protein. A nonsense mutation generally codes for certain kinds of amino acid, however, post mutation can get converted into a stop codon. This transformation can result in the formation of a truncated protein.  

Deletion or insertion at the chromosomal level can also result in the formation of a truncated protein. As insertion and deletion of a certain concentration of DNA can probably lead to the formation of a novel codon that can either be a nonsense codon or a stop codon, which may eventually result in the formation of a truncated protein.  

Hence, the correct answers are statements 1st, 2nd, 3rd, 4th, and 6th  

It’s a fact that biodegradation of plastic is more hazardous to the environment than the presence of plastic as marine debris. Although the latter may entangle marine organisms or could cause immediate ingestion, it’s the former which is more harmful. Plastic degradation is a slow process and if biodegradation is not done properly (with all important factors to consider), greenhouse gas like methane may be emitted during the process — creating a bigger problem for the environment.