Quaternary structure of a protein is formed by the interactions between the multiple polypeptide chains. The interactions that make up the quaternary structure include the hydrogen bonding, dipole-dipole forces, London dispersion forces, ionic bonding, hydrophobic interactions and disulphide bonds.
Example of Quaternary Structure:
The examples of protein molecules that exhibit the quaternary structure include hemoglobin and DNA polymerase. The hemoglobin is responsible for transporting oxygen to the body tissues and organs. It is made up of four polypeptide chains i.e. two α and two β polypeptides. The DNA polymerase is composed of ten polypeptides and it serves the role of synthesizing the new strands of DNA (DNA replication) in 5’ to 3’ direction.
How is an F′ factor different from an F factor?
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
In fruit flies, curved wings are recessive to straight wings,
What is an advantage and a disadvantage of this repair system?
Explain the type of speciation (allopatric, parapatric, or sympatric
The raw material for evolution is random mutation. Discuss whether or
With regard to the timing of conjugation, explain why the recipient
A woman who is heterozygous, Bb, has brown eyes;
A recessive allele in mice results in an unusally long neck.
Why is an antibody used in this experiment? From