Mendel does not get linkage due to
dominance
independent assortment
segregation
genes on same chromosome
The F1 generation has all tall, and F2 ratio is 3 : 1, it proves.
law of dominance
law of segregation
linkage
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
Multiple phenotype seen in
pleiotropy
incomplete dominance
multiple allelism
polygenic inheritance
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
How many pairs of contrasting characters in pea pod were chosen by Mendel?
3
5
7
9
Genetic counselors can identify heterozygous individuals by
height of individuals
colour of individuals
screening procedures
All of these
The term 'Genetics' was proposed by
Mendel
Bateson
Morgan
Johanssen
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.
15
25
Allelism refers to
genic interactions controlling a character
multiple genes controlling a character
expression of many characters by a single gene
alternative forms of a gene at a given locus
