If we change the position of genes on chromosomes it will be included in

1.  Gene mutation

2.  Chromosomal mutation

3.  Polyploidy

4.  Transversion mutation

If size of strach grains in pea is considered as phenotype, Bb alleles show

1.  Dominance

2.  Codominance

3.  Incomplete dominance

4.  Pleiotropism 

Both the alleles produce their effect in

1.  Heterozygous B blood group

2.  Sickle cell hemoglobin

3.  Snapdragon flower color

4.  Cucurbits fruit color 

Law of segregation can be proved with

1.  The presence of dominant genotype in ${\mathrm{F}}_2$

2.  The presence of recessive genotype in ${\mathrm{F}}_1$

3.  The presence of recessive homozygous in ${\mathrm{F}}_2$

4.  The presence of a heterozygous individual in ${\mathrm{F}}_2$

Which of the following traits shows expression in only homozygous condition?

1.  Yellow seed

2.  Inflated pod

3.  Axial flower

4.  Wrinkled seed

In the given below figure what does (a) and (b) represent

1.  GAG, Glumatic acid

2.  GUG, Valine

3.  GAG, Valine

4.  GUG, Glumatic acid 

Choose odd one out with respect to chromosomal disorder

1.  Down's syndrome

2.  Klinefelter's syndrome

3.  Turner's syndrome

4.  Thalassemia 

Morgan worked with the tiny fruit flies - Drosophila melanogaster, which were suitable for genetical studies, as

a.  They could be grown on simple medium

b.  They complete their life cycle in about two weeks

c.  Single mating could produce a large number of progeny flies

d.  No clear cut sexual dimorphism is found 

1.  Only d is incorrect

2.  Both a and d are incorrect

3.  Only b is correct

4.  Both c and d are incorrect 

Match the following

   Column-l                       Column-ll

a.  Haemophilia               i.  Rudimentary ovaries

b.  Sickle cell anaemia     ii.  X-linked recessive

c.  Turner's syndrome      iii.  Gynaecosmastia

d.  Klinefelter's                iv.  Autosomal recessive 
     syndrom

a.  a(ii), b(iv), c(i), d(iii)

b.  a(ii), b(iv), c(iii), d(i)

c.  a(iv), b(ii), c(i), d(iii)

d.  a(iv), b(i), c(ii), d(iii) 

Who noticed that the behaviour of chromosomes is parallel to the behaviour of genes?

1.  Temin and Baltimore

2.  Correns and Tschermak

3.  Beadle and Tatum

4.  Sutton and Boveri