Genetic Principles After Mendel and post Mendelian Genetics or Non Mendelism Trivia Quiz

Questions : 15 | Total Attempts: 482 | Recent Updated: 14-Dec-2021
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Post mendelian are based on gene interactions. They are two basic types one is intragenic or interallelic and another one is intergenic or nonallelic. Intragenic involves interaction between two alleles of the same gene, producing expression different from typical permanent recessive phenotype. Examples of intragenic are incomplete dominance, codominance, and multiple alleles. Two or more independent present on same for different chromosomes interact to produce a different expression is called intragenic. So take this quiz and know more about the genetic principle after Mendel or Non-Mendelism.

Questions Excerpt


1. The phenomenon where both the genes for a particular trait express partially when present together with the hybrid, it is called............

A. Multiple alleles

B. Codominance

C. Incomplete dominance

D. None of these

2. Which one of the following is the other name of incomplete dominance?

A. Blended inheritance

B. Mosaic inheritance

C. Partial inheritance

D. All of these

3. The phenomena when both the genes of an allelic pair contribute equally and independently to the phenotype instead of showing dominant and recessive form, it is called.......

A. Epistasis

B. Multiple alleles

C. Codominance

D. Mosaic inheritance

4. Which one of the following is the example of codominance?

A. Tallness in sweet pea

B. Coat colour in short horned cattle

C. Seed court in lablab

D. All of these

5. Which one of the following produced due to repeated mutations of the same gene but in different directions?

A. Incomplete dominance

B. Codominance

C. Supplementary genes

D. Multiple alleles

6. Which one of the following does not exhibit crossing over?

A. Complementary genes

B. Multiple alleles

C. Supplementary genes

D. Modifying genes

7. Rabbit has how many alleles for coat color?

A. 6

B. 5

C. 4

D. 3

8. Drosophila has........... Alleles for eye color.

A. 15

B. 17

C. 19

D. 21

9. Which one of the following produces a phenotypic ratio of 9:7?

A. Supplementary gene

B. Epistasis

C. Complementary genes

D. Modifying genes

10. What is the phenotypic ratio produced by collaborator genes?

A. 9:4:5:1

B. 9:3:3:1

C. 9:7:7:1

D. 9:2:2:1

11. Single phenotypic trait governed by more than one pair of the gene is called.......

A. Epistasis

B. Polygenic trait

C. Supplementary gene

D. Collaborator gene

12. Which of the following is the example of multiple genes?

A. Cob length in maize

B. Tallest in sweet pea

C. Milk and meat yield in animals

D. All of these

13. Sickle Cell anemia is an example of .......

A. Lethal genes

B. Pleitropy gene

C. Both of these

D. None of these

14. Which one of the following is the example of Polygenic Inheritance?

A. Human skin colour

B. Human Eye Colour

C. Both of these

D. Human Hair colour

15. ...... blood group system is due to multiple allelism.

A. AB

B. BO

C. ABO

D. All of these

 

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