The best method to improve the genetic quality of mankind is
Marriage restrictions
Sterilizations
Control of immigrations
Sexual separation of defectives
Haploids are more suitable for mutation studies than the diploids. This is because
A person is suffering from disease phenylketonuria, which is an autosomal recessive disease. Which of these is lacking in the person?
In Lathyrus odoratus, hybrid blue flowered and long pollen plant is test crossed with homozygous recessive red flowered and round pollen plant then how many parental types are obtained when genes are present in cis stage in parents?
When an albino female plant of maizeis crossed with normal green male plant, all plants in the progeny are albino because
Assertion : Persons suffering from haemophilia fail to produce blood clotting factor $VIII$.
Reason : Prothrombin producing platelets in such persons are found in very low concentration.