Genomic imprinting is such a pattern of inheritance in which a change occurs in a single gene or in a chromosome. This change occurs while the gametes are formed i.e. spermatogenesis (formation of sperms) or oogenesis (formation of ova). It can also be stated as a process in which a gene is expressed according to its nature of being inherited from the father or from the mother.
This type of effects takes place only in sexually reproducing placental animals. Imprinting is one of those patterns of inheritance that do not follow Mendelian laws. Hence, the traits can be passed down from either maternal or parental lines.
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.