How many alleles for seed shape were present in Mendel investigations?
a) two
b) three
c) four
d) many
Explanation: one allele for round seed (R) and other for wrinkle seed (r)
How many alleles for the height of garden pea plant were present in Mendel investigations?
a) two
b) three
c) four
d) many
Explanation: one allele for tallness (T) and other for dwarfness (t)
If there are 4 or more possible phenotypes for a particular trait, how many alleles for that trait must be exist in the population?
a) one
b) two
c) more than two
d) unlimited
When more than two alleles exist in population for a particular trait, such alleles are known as………..
a) bi-alleles
b) tri-alleles
c) multiple alleles
d) tetra-alleles
Which of the following example shows the phenomenon of multiple alleles?
a) height in garden pea
b) flower color in 4 O’clock plant
c) ABO blood group
d) drosophila eye pigment
Explanation: 3 alleles i.e. IA, IB and io
ABO blood group is an example of……
a) complete dominance
b) Co-dominance
c) multiple alleles
d) both b and c
