Match the following:
Column – I | Column $- II$ |
$(1)$ Failure of cytokinesis | $(p)$ To study in beritance of particular traits |
$(2)$ Trisomy of 21 | $(q)$ Polyploidy |
$(3)$ Error of metabolism | $(r)$ Down's syndrome |
$(4)$ Pedigree analysis | $(s)$ Phenylketonuria |
$(1-p),(2-q),(3-r),(4-s)$
$(1-q), (2-p),(3-s),(4-r)$
$(1-q),(2-r),(3-s), (4-p)$
$(1-p),(2-r),(3-s),(4-q)$
The person with klinefelter's syndrome
Which of the following statements are correct about Klinefelter's Syndrome?
$A$. This disorder was first described by Langdon Down $(1866)$.
$B$. Such an individual has overall masculine development. However, the feminine developement is also expressed.
$C$. The affected individual is short statured.
$D$. Physical, psychomotor and mental development is retarded.
$E$. Such individuals are sterile.
Choose the correct answer from the options given below:
The genotype of a boy having sexual characters of a girl is
In which of the following disorder gynaecomastia symptom is seen in individuals?
In Drosophila melanogaster, $3$ pairs of autosomes and sex chromosomes of $XO$ type give rise to a normal male in appearance. In man, $22$ pairs of autosomes and $XO$ type of sex chromosomes form