Protein structure

Which structure describes the specific sequence of amino acids in a protein?
A) Primary structure
B) Secondary structure
C) Tertiary structure
D) Quaternary structure
Which of the following is not a type of secondary structure found in proteins?
A) Alpha helix
B) Beta sheet
C) Beta turn
D) Gamma loop

[@GeneticsLessons]

the primary structure of a protein is defined as the sequence of amino acids linked together to form a polypeptide chain. Each amino acid is linked to the next amino acid through peptide bonds created during the protein biosynthesis process.

[@haroonkhan2412]

This is the original question - Ques - A researcher exposed Drosophila larvae to 37°C during their growth. One of the adult flies that emerged had a crossveinless phenotype. When this crossveinless fly was crossed to a known crossveinless mutant fly all the progeny had normal phenotype. The options had both condition mutant and phenocopy. What is the difference between condition mutant and phenocopy? Any specific points I can use differentiate between them in such a question?

[@GeneticsLessons]

Phenocopy - change in appearance due to environmental effect and not due to change (mutation) in genes.

[@GeneticsLessons]

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