Heteroplasmy is a condition in which a cell shows variations in a certain type of organelle. The organelles present in such a cell or an individual contains more than one type of organellar genome for example mitochondrial DNA and plastid DNA. Through this phenomenon, one is able to determine the extent and severity of mitochondrial diseases.
There are hundreds of mitochondria present in a eukaryotic cell, hence it is usual if some mitochondrial DNA undergo mutations. In the eukaryotic cell of plants, heteroplasmy occurs in both mitochondria and chloroplasts as they both are self-replicating (having own genetic material).
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.
