A macromolecule is a very large molecule that has a diameter of about 100 to 10k angstroms. They are the polymers of small molecules that have distinct characteristics. They are composed of thousands of atoms. The synthetic polymers (plastics), natural fibers (cotton), and biologically important constituents like protein, nucleic acids (DNA, RNA), carbohydrates are macromolecules. The proteins are the polymers of amino acids. The amino acids link together to form polypeptides through peptide linkage and these polypeptides then give rise to protein molecules.
The nucleic acids are formed by the combination of nucleotides joined together by phosphodiester linkages. In the same way, the polysaccharides are larger molecules which are the polymers of monosaccharides (simple sugars) that are linked to one another through glycosidic linkages. These macromolecules are pivotal for the normal functioning of a body and to sustain life.
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
A woman who is heterozygous, Bb, has brown eyes;
Explain why familial breast cancer shows a dominant pattern of inheritance in
How is an F′ factor different from an F factor?
With regard to the timing of conjugation, explain why the recipient
The raw material for evolution is random mutation. Discuss whether or
Why is an antibody used in this experiment? From
Explain the type of speciation (allopatric, parapatric, or sympatric
In fruit flies, curved wings are recessive to straight wings,
A recessive allele in mice results in an unusally long neck.
