A pure tall - red flower plant was crossed with dwarf - white-flowered plant. In ${\mathrm{F}}_1$, all were tall with pink flowers. What is the percentage probability of getting red and pink-flowered plants respectively?

1.  25% and 50%

2.  50% and 25%

3.  Zero and 75%

4.  Zero and 50% 

Which one of the following traits are controlled by genes located on the differential part of X-chromosome?

1.  Porcupine skin and epidermolysis bullosa

2.  Beard in man and milk glands in female

3.  Color blindness and hemophilia

4.  Color blindness and cystic fibrosis

In pea, the gene that controls starch synthesis shows all of the following except

1.  Dominance 

2.  Incomplete dominance

3.  Multiple allelism

4.  Pleiotropy

What is incorrect for genetic maps?

1.  Alfred Sturtevant prepared it for the first time using monohybrid test cross

2.  It is a measure of the distance between genes present on the same chromosome

3.  Stronger the linkage lesser is the distance between two genes

4.  It was extensively used in the case of the Human Genome Sequencing Project

Match the column correctly

        Column l                            Column ll

a.  Phenylketonuria                  i. Autosomal trisomy associated with mongolism

b.  Down's syndrome               ii. Gynaecomastia

c.  Klinefelter's syndrome        iii. Autosomal recessive trait associated with mental retardation

d.  Turner's syndrome             iv.  Sterile females with rudimentary ovaries 

1.  a(iii), b(i), c(iv), d(ii)

2.  a(ii), b(iii), c(i), d(iv)

3.  a(ii), b(i), c(iii), d(iv)

4.  a(iii), b(i), c(ii), d(iv)

All are X-linked traits, except

1.  Colourblindness

2.  Haemophilia

3.  Deficiency of glucose-6-phosphate dehydrogenase

4.  Hypertrichosis

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 ${\mathrm{F}}_2$