Question No:1
Increase in a whole set of chromosome in an organism is known as
[A] Polyploidy
[B] Aneuploidy
[C] Trisomy
[D] Tetrasomy
Question No:2
Langdon down describe Down’s syndrome in which year
[A] 1866
[B] 1890
[C] 1852
[D] 1953
Question No:3
Two allelic genes are located on
[A] The same chromosomes
[B] Two homologous chromosomes
[C] Two non-homologous chromosomes
[D] Any two chromosomes
Question No:4
In human beings, the colour of skin is controlled by
[A] Multiple alleles
[B] Lethal genes
[C] Polygenic effect
[D] None of these
Question No:5
Which of the following is genetically dominant in man?
[A] Colour blindness
[B] Rh positive
[C] Haemophilia
[D] Albinism
Question No:6
If a certain patient with blood group B requires immediate blood transfusion, the following type can be given to him
[A] O and B
[B] O and AB
[C] A and AB
[D] Band AB
Question No:7
Karyotype of Klinefelter’s syndrome is
[A] 44+XXY
[B] 44 + XO
[C] 44 + XYY
[D] 44 + XXXY
Question No:8
Which is not a character of Klinefelter’s syndrome?
[A] Masculine development
[B] Gynaecomastia
[C] Fertile individual
[D] Sterile individual
Question No:9
All are characters of Down’s syndrome except
[A] Congenital heart disease
[B] Broad flat face
[C] Small and wrinkled tongue
[D] Many ‘loops’ on finger tips
Question No:10
Which karyotype present monosomy?
[A] 2n+1
[B] 2n-2
[C] 2n-1
[D] 2n + 2
Question No:11
Which karyotype represents trisomy?
[A] 2n+1
[B] 2n-2
[C] 2n – 1
[D] 2n + 2
Question No:12
Find out total number of Mendelian disorder from the following:
Cystic Fibrosis, Haemophilia, Sickle cell anaemia, Colorblindness, Thalesemia, Phenyllketonuria
[A] 4
[B] 5
[C] 6
[D] 3
Question No:13
Which of the following is sex-linked recessive disorder?
[A] Myotonic dystrophy
[B] Sickle-cell anaemia
[C] Haemophilia
[D] Phenylketonuria
Question No:14
Following is autosomal dominant trait
[A] Phenylketonuria
[B] Sickle-cell anaemia
[C] Haemophilia
[D] Myotonic dystrophy
Question No:15
Queen Victoria was a carrier of which disease?
[A] Myotonic dystrophy
[B] Sickle-cell anaemia
[C] Haemophilia
[D] Phenylketonuria
Principles of Inheritance and Variation Mock Test-8
CategoriesNEET Biology