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.
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
