There are some observations that support the chromosomal theory of inheritance. The postulates of this theory are: the chromosomes in an organism are present in the form of homologous pairs. One of which comes from the maternal side and the other from the father. The same pattern is seen in the genes too. These homologous chromosomes are separated during the process of meiosis and these are then sorted into the form of gametes independently.
This theory was quite controversial in the start as there was no evidence that showed that the traits were carried through chromosomes. But it was later confirmed by the experiments executed by Thomas Morgan.
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.
