Line A below shows the peptide synthesized after transcription and translation of a piece of DNA. Line B shows the peptide synthesized after a mutation in this piece of DNA. proline- arginine - aspartic acid - lysine - glycine proline - glutamine - aspartic acid - lysine — glycine The type of change in the DNA most likely to be responsible for the difference between the peptides is: a. A frame-shift mutation d. A base deletion b. A base insertion e. A silent mutation
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
Line A below shows the peptide synthesized after transcription and translation of a piece of DNA. Line B shows the peptide synthesized after a mutation in this piece of DNA.
- proline- arginine - aspartic acid - lysine - glycine
- proline - glutamine - aspartic acid - lysine — glycine
The type of change in the DNA most likely to be responsible for the difference between the peptides is:
|
a. A frame-shift mutation |
d. A base deletion |
|
b. A base insertion |
e. A silent mutation |
f. A base substitution
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