Genetic counselors can identify heterozygous individuals by
height of individuals
colour of individuals
screening procedures
All of these
Mendel does not get linkage due to
dominance
independent assortment
segregation
genes on same chromosome
How many pairs of contrasting characters in pea pod were chosen by Mendel?
3
5
7
9
Inheritance of 'ABO' blood group shows
polyploidy
incomplete dominance
multiple allelism
polygeny
The F1 generation has all tall, and F2 ratio is 3 : 1, it proves.
law of dominance
law of segregation
linkage
Inheritance of flower colour is an example of incomplete dominance, which is seen in
Antrirrhinum
Pisum
Solanum
Hibiscus
If two pea plants having red (dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% are white. The genotypic constitution of the parents having red coloured flowers will be.
both homozygous
one homozygous and other heterozygous
both heterozygous
both hemizygous
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
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
