It is character of disorder which described by Langdon Down.
Palm is broad
Gynaecomastia
Mental retardation
$A$ and $C$ both
Down’s syndrome in humans is due to
The number of chromosomes in Down's syndrome is
Give differences : Mendelian disorders and Chromosomal disorders
In man sometime during gametogenesis sex chromosomes are not separated themselves on account of which chromosome number becomes $45, 47$ or $48$. In this condition which of the following genotype and phenotype is correct
A human female with Turner’s syndrome