Which phenomena leads to the variation in $DNA$
Mutation
Linkage
Both $(a)$ and $(b)$
Mitosis
The average ratio of male to female individuals based on $XX$ and $XY$ type of sex determination, in total world of human population is
Foetal sex can be determined by examining cells from amniotic fluid looking for
A pedigree chart below shows the inheritance of a particular sex-linked trait ("trait") Key: Unaffected Males Affected Males Unaffected Females Affected Females How is the trait being studied in the pedigree chart above?
When heterozygous tall plants are self-pollinated than tall and dwarf plants are obtained, this is explain to