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Multiple Choice Quiz on Mendelism and Post Mendelism

This genetics quiz is designed to assess your basic knowledge in 'Mendelism and Post Mendelism’. Questions come under ‘medium’ category. Choose the best answer from the four options given. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking ' Score'. Percentage score will be displayed along with right answers.
mirabilis jalapa

1. In Mirabilis jalapa RR,Rr and rr determine red, pink and white colours respectively. When F1 hydrid of RR and rr was crossed with dominant parent, the ratio produced is
all red
2 red: 2 pink
2 pink: 2 white
all white
2. Inheritance of skin colour in human beings is an example of
Mendelian inheritance
Monogenic inheritance
polygenic inheritance
complementary genes
3. In a cross between heterozygous tall(Tt) and homozygous tall (TT), there is a progeny of 12. How many of them would be tall
6
8
10
12
4. Two crosses between the same pair of genotypes/ phenotypes in which the sources of gametes are reversed in one cross are called
test cross
dihybrid cross
reverse cross
reciprocal cross
5. Self fertilizing trihybrid plants form
four diffferent gametes and sixteen different zygotes
eight diffferent gametes and 64 different zygotes
eight diffferent gametes and 32 different zygotes
eight diffferent gametes and 64 different zygotes
6. Independent assortment is absent in case of
gene located on the same chromosome
genes located on homologous chromosomes
gene located on nonhomologous chromosomes
all of the above
7. Which one is dominant trait out of the characters chosen by Mendel?
Pod colour- Yellow
Seed colour- White
flower position - axillary
plant height-dwarf
8. Red seed colour shows an F2 ratio of 1:4:6:4:1. It is due to
two polygenes
supplementary genes
different number of dominant genes
different number of recessive genes
9. In Curcurbita, W is epistatic over Y and Y gene normally responsible for yellow and green colour fruits. It produces white flowers. What is the ratio of fruits in the progeny of cross WwYy x wwYy?
9 white: 7 yellow: 0 green
3 white: 4 yellow: 1 green
4 white: 3 yellow: 1 green
2 white: 1 yellow: 1 green
10. When two alleles of a gene are present and both dominant, the situation is called
incomplete dominance
co dominance
epistasis
none of these
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