Mendel's principle of segregation means that the germ cells always receive
one pair of alleles
one quarter of the genes
one of the paired alleles
any pair of alleles
Mendel was successful in discovering the principle of inheritance as
he took pea plants for his experiments
he did not encounter linkage between the genes for the characters he considered
he had an in-depth knowledge on hybridization
he was a famous mathematician
The term 'Genetics' was proposed by
Mendel
Bateson
Morgan
Johanssen
Mendel does not get linkage due to
dominance
independent assortment
segregation
genes on same chromosome
Which one of the following cannot be explained on the basis of Mendel's Law of Dominance?
The discrete unit controlling a particular character is called a factor
Out of one pair of factors one is dominant, and the other is recessive
Alleles do not show any blending and both the characters recover as such in F2 generation
Factors occur in pairs
When a cross is conducted between black feathered hen and a white feathered cock,blue feathered fowls are formed. When these fowls are allowed for interbreeding, in F2 - generations, there are 20 blue fowls. What would be the number of black and white fowls?
Black 20, white 10
Black 20, white 20
Black 10, white 10
Black 10, white 20
Inheritance of flower colour is an example of incomplete dominance, which is seen in
Antrirrhinum
Pisum
Solanum
Hibiscus
When different alleles of the same gene are present on an individual, the individual is a
heterozygous
diploid
homozygous
mosaic
A polygenic trait is controlled by 3 genes A, B and C. In a cross AaBbCc × AaBbCcm, the phenotypic ratio of the offsprings was observed as 1: 6 : x : 20 : x : 6 : 1.
3
9
15
25
The genotype of a plant showing the dominant phenotype can be determined by
test cross
dihybrid cross
pedigree analysis
back cross
