Top 150+ Solved Heredity and Variation MCQ Questions Answer
Q. Genetic balance theory for sex determination in Drosophila was proposed by
a. Prof. R. P. Roy
b. H. E. Warmbe
c. C.B. Bridges
d. Mc. Chang
e. cessive
Q. In Bonellia all larva are genetically and cytologically similar. In this worm mole individuals live inthe uterus of female. If a particular larva settle near proboscis of an adult female, it becomes a male individuals. Larva develops free in water it becomes.
a. Male individuals
b. Female individuals
c. Inter Sex
d. Super female
e. cessive
Q. F2 generation is produced as a result of
a. Crossing F1 individuals with dominant parent
b. Crossing F1 individuals with recessive parent
c. Crossing one of the parental individual with dominant individual.
d. Crossing F1 individuals amongst them selves.
e. cessive
Q. Segregation of genes take place during which phase of cell division ?
a. Metaphase
b. Anaphase
c. prophase
d. Embryo formation
e. cessive
Q. A couple has four daughters. The percentage probability of fifth child to be a Daughter is.
a. 10
b. 50
c. 75
d. 100
e. cessive
Q. In human being sex chromosomal complement is
a. XX - XY
b. XX - XO
c. ZO - ZZ
d. ZW - ZZ
e. cessive
Q. Zea mays has 10 pairs of chromosomes . Linkage groups present in it are
a. 5
b. 10
c. 20
d. 40
e. cessive
Q. Crossing over during meiosis occurs between
a. sister chromatids
b. Non sister chromatids
c. Centromeres
d. Non homologous chromosomes
e. cessive
Q. Incomplete linkage in Drosophila produces off springs with parental and non-parental combinations.State the percentage of non parental combination of Drosophila.
a. 83%
b. 17 %
c. 15 %
d. 85 %
e. cessive
Q. What does the term recombination describe ?
a. Generation of non- parental gene combination
b. Generation of parental gene combination
c. Generation of internal gene combination
d. All of the above
e. cessive
Q. A cross between hybrid and a parent is known as
a. Test cross
b. Back cross
c. Monohybrid cross
d. Reciprocal cross
e. cessive
Q. Checkerboard method of calculations was developed by
a. Mendel
b. Bateson
c. punnett
d. Morgan
e. cessive
Q. Punnet square is used to know
a. outcome of a cross
b. probable result of a cross
c. Types of gametes
d. Number of gametes
e. cessive
Q. ) First generation after a cross is
a. First filial generation
b. F1 gneratioon
c. Second filial generation
d. Both (A) and (B)
e. cessive
Q. ) In humans , height shows a lot of variation . It is an example of
a. Multiple alleles
b. Pleiotropic inheritance
c. polygenic inheritance
d. False allelic inheritance
e. cessive