Failure of cytokinesis after ...$A$... stage of cell division results in an increase in a whole set of chromosomes in an organism called ...$B$...
$A$-prophase, $B$-polyploidy
$A$-metaphase, $B$-polyploidy
$A$-anaphase, $B$-polyploidy
$A$-telophase, $B$-polyploidy
When the chromosome number of a given organism has one additional chromosome in one of the homologous pairs, the addition is known as
Identify the disease on basis of following characters.
$(1)$ Short statured with small round head.
$(2)$ Furrowed tongue and partially open month.
$(3)$ Palm is broad with characteristic palm crease.
Euploidy is best explained by
Match list I with List $II$ and select the correct answer using code given below
List $I$ $(syndrome)$
$(1)$ Patau’s syndrome
$(2)$ Kline-Felter’s syndrome
$(3)$ Down’s syndrome
$(4)$ Turner’s syndrome
List $II$ $(Chromosomal\, abnormality)$
$(A)$ $44 + XXY = 47$
$(B)$ $44 + X = 45$
$(C)$ $46 + 1 = 47$, Chromosome $13^{th}$
$(D)$ $46 + 1 = 47$, Chromosome $21^{st}$ Code
Describe chromosomal disorder and describe its examples