Polytene chromosomes in salivary glands of Drosophila are formed as a result of
Endoduplication
Duplication without separation
Replication of $DNA$ without cell division
All the above
Cytoplasmic inheritance always shows
A cross involving two different genera is called
Hugo de Vries formulated the “Mutation Theory'' based on the experiments he conducted on
What will be the number of linkage groups in maize if it has $10$ pairs of chromosomes
Which one of the following is a dominant trait