The progenies are found to be male sterile after crossing two plants. This is due to some genes, which are present in
Mitochondria
Cytoplasm
Nucleus
chloroplast
Sexual reproducation leads to
Assertion : Phenylketonuria is a recessive hereditary disease caused by body’s failure to oxidize an amino acid phenylalanine to tyrosine, because of a defective enzyme.
Reason : It results in the presence of phenylalanine acid in urine.
Mental retardation in man, associated with sex chromosomal abnormality is usually due to
$A$ $Y-$linked gene is responsible for hypertrichosis (long hair on ears). When an affected man marries a normal woman, what percentage of their daughters would be expected to have hairy ears?
Blood bank of the body or reservoir where the blood is stored and can be mobilized, is