Top 150+ Solved Heredity and Variation MCQ Questions Answer
Q. What does the following pedigree chart represent ?
a. Pedigree of sex - influenced disorder
b. Pedigree of sex - linked disorder
c. Pedigree of polydactylous in man
d. Pedigree of gene mutation
e. cessive
Q. What kind of chromosomal aberrations is seen in the given diagram?
a. Deletion
b. Duplication
c. inversion
d. Translocation
e. cessive
Q. What kind of sex determination is seen in the given chart?
a. Sex determination in drosophila
b. Sex determination in honey bee
c. Sex determination in moth
d. Sex determination in butterfly
e. cessive
Q. What do A, B, C represent in the given diagram?
a. Centromere, chromatids chiasma
b. Chromatid, chiasma, centromere
c. Centromere, chiasma, chromatid
d. Chromatid, chiasma centromere
e. cessive
Q. What does the diagram represent ?
a. synapsis Zygotene
b. crossing over, Diplotene
c. Tetrad, Pachytene
d. Terminalization, Diakinesis
e. cessive
Q. Whose karyotype is represented below ?
a. Female Drosophila
b. Male Drosophila
c. Intersex Fly
d. Super female fly
e. cessive
Q. What does the above cross represent ?
a. Incomplete linkage
b. Complete linkage
c. Crossing over
d. Evolution
e. cessive
Q. The genes Controlling the seven characters of a pea plant studied by Mendel are now known to be located on how many different chromosomes? AIPMT - 2003
a. Seven
b. Six
c. Five
d. Four
e. cessive
Q. Which one of the following traits of garden pea studied by Mendel was a recessive feature? AIPMT - 2003
a. Axial flower position
b. Green Seed colour
c. Green pod colour
d. Round Seed shape
e. cessive
Q. Lack of independent assortment of two genes A and B in fruitfly the Drosophilia is due to
a. Repulsion
b. Recombination
c. Linkage
d. Crossing over
e. cessive
Q. . A male human is heterozygous for autosomal genes A and B and is also hemizygous for haemophilic gene h. What proportion of his sperms will be abh? AIPMT - 2004
a. 1/8
b. 1/32
c. 1/16
d. 1/4
e. cessive
Q. . In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt. AIPMT - 2004
a. 25% will be tall with red fruit
b. 50% will be tall with red fruit
c. 75% will be tall with red fruit
d. All the offspring will be tall with red fruit.
e. cessive
Q. A normal woman, whose father was colour blind is married with normal man. The sons would be AIPMT - 2004
a. 75% Colour blind
b. 50% colour blind
c. all normal
d. all colourblind
e. cessive
Q. .The recessive genes located on X - chromosome of humans are alwaysAIPMT-2004
a. Lethal
b. Sub - Lethal
c. expressed in males
d. expressed in females
e. cessive