Broad palm with single palm crease is visible in a person suffering from-
Which one of the following symbols represents mating between relatives in human pedigree analysis?
Given below are two statements:
Statement I : Sickle cell anaemia and haemophilia are autosomal dominant traits.
Statement II : Sickle cell anaemia and haemophilia are disorders of the blood.
In the light of the above statements, choose the correct answer from the options given below :
In meiosis, crossing over and exchange of genetic material between homologous chromosomes are catalyzed by the enzyme