Choose the correct statements about proteins and evolution. Select all that appl
ID: 935032 • Letter: C
Question
Choose the correct statements about proteins and evolution. Select all that apply.
1. Lupine leghemoglobin and human ?-hemoglobin are only about 16% identical. This is an example of convergent evolution.
2. The tertiary structure of a protein is less conserved than the primary structure.
3. Percent identity for a random alignment of two nucleic acids is likely to be higher than the percent identity for an equal-length random alignment of two polypeptide segments.
4. Paralogs are derived from a common ancestor, but often have different functions.
5. Two proteins that have similar tertiary structure are said to be homologous.
Explanation / Answer
the correct answer about protien is
3. Percent identity for a random alignment of two nucleic acids is likely to be higher than the percent identity for an equal-length random alignment of two polypeptide segments.
4. Paralogs are derived from a common ancestor, but often have different functions.