Question No:1
What type of gametes will form by genotype RrYy
[A] RY, Ry, rY, ry
[B] RY, Ry, ry, ry
[C] Ry, Ry,Yy, ry
[D] Rr, RR,Yy,YY
Question No:2
Which genotype characterises an organism that is heterozygous for two genes
[A] RRYy
[B] RrYY
[C] RRYY
[D] RrYy
Question No:3
The dwarfness in plants of F2 generation is
[A] Recessive
[B] Dominant
[C] Both of the above
[D] None of the above
Question No:4
When heterozygous tall plants are self-pollinated, then tall and dwarf plants are obtained. This explains
[A] Law of purity of gamete
[B] Segregation of law
[C] Division in spores
[D] Independent assortment
Question No:5
Mendel’s principle of segregation was based on the separation of alleles in the garden pea during
[A] Pollination
[B] Embryonic development
[C] Seed formation
[D] Gamete formation
Question No:6
Which of the following is dominant character according to Mendel?
[A] Dwarf plant and yellow fruit
[B] Terminal fruit and wrinkled seed
[C] White testa and yellow pericarp
[D] Green coloured pod and rounded seed
Question No:7
In Mendelism, linkage was not observed due to
[A] Mutation
[B] Independent assortment
[C] Synapsis
[D] Crossing over
Question No:8
Mendel’s law of heredity can be explained with the help of
[A] Mitosis
[B] Meiosis
[C] Both mitosis and meiosis
[D] None of the above
Question No:9
A cross between plants having RRYY and rryy composition will yield plants with
[A] Round and yellow seeds
[B] Round and green seeds
[C] Wrinkled and yellow seeds
[D] Wrinkled and green seeds
Question No:10
The genotype of an individual is Rr Bb. How many different types of gametes will it produce based on the law of independent assortment?
[A] 16
[B] 9
[C] 8
[D] 4
Question No:11
Which of the following is heterozygous for two pairs of alleles?
[A] TTRR
[B] TrRR
[C] ttrr
[D] TrtR
Question No:12
In Mendel’s experiment, nature of seed coat, flower colour, position of flower, pod colour, stem height, etc., are referred to as
[A] Alleles
[B] Genotypes
[C] Phenotypes
[D] All of the above
Question No:13
A cross between a homozygous recessive and a heterozygous plant is called
[A] Monohybrid cross
[B] Dihybrid cross
[C] Test cross
[D] Back cross
Question No:14
Cross between F1, plant and recessive female plant is called
[A] Back cross
[B] Test cross
[C] Out cross
[D] Mutation
Question No:15
In F2 generation, a phenotypic ratio of 1:1:1:1 exhibits
[A] Back cross
[B] Monohybrid test cross
[C] Lethality
[D] Dihybrid test cross
Principles of Inheritance and Variation Mock Test-2
CategoriesNEET Biology