If a cross between two plants give 50% tall and 50% dwarf progeny, then the parents genotypes are
Tt x Tt
Tt x tt
TT x tt
TT x Tt
Who is known as the 'father of genetics'?
Fischer
Mendel
Aristotle
Weismann
Of a normal couple, half the sons are haemophilic while half the daughters are carriers. The gene is located on
X-chromosome of father
Y-chromosome of father
one X-chromosome of mother
both the X-chromosomes of mother
If hybrid red flowered plants of pea are crossed back to pure red flowered parent plant, the progeny will show
all red flowered plants
all white flowered plants
3 red and 1 white flowered plants
50% red and 50% white flowered plants
The organisms phenotypically similar but genotypically different are said to be
multizygous
homozygous
heterozygous
monozygous
When biologists analyse the genetic crosses, they call the first generation
phenotype
P1-generation
F1-generation
F2-generation
The plants with sets of similar chromosomes are termed as
diploid
tetraploid
autopolyploids
allopolyploids
F2-generation is produced by
selfing the parents
recessive cross between individual parents
crossing F1-progeny with one of the parents
selfing the progeny of two individual parents
The externally observable characters of an individual are called
genotype
Law of independent assortment was proposed by
Linnaeus
Robert Hook
Melvin Kelvin