MCQ on Genetics Part 1: Introduction to Genetics


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Genetics Quiz on Introductory Genetics

This question set on Genetics MCQ-01: Mendelian Genetics / Classical Genetics / Introduction to Genetics consists of 15 questions in MCQ format. Please select the correct answer and at the end of the test, you have to click on 'SUBMIT' button to see your Score and the Correct Answers. 

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1. Polydactyly is a dominant trait, yet many individuals having single dominant alleles do not show any sign of polydactyly. This is known as:
2. If the genotypes of the parents were AABBccddeeFF and aabbCCDDEEff, what would be the genotype of the progeny?
3. When a heterozygous offspring is crossed with the homozygous recessive parent, the cross is called:
4. The possible type of gametes formed from genotype AABbCCDdEe will be:
5. The suppression of the activity of one gene by another non-allelic gene is called:
6. Cystic fibrosis is:
7. If a plant with genotype AaBb is self-pollinated, where the A and B are not linked, then the probability of getting AABB genotype will be
8. Two different mutant strains of Drosophila give a black body color. When these mutants are crossed all progeny have wild type color. It means mutation is:
9. In a genetic test the 9 : 7 ratio in the F2 generation represents:
10. The ABO blood groups in humans are controlled by the gene I. It has three alleles − IA, IB and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur?
11. The traits studied by Mendel in his classical experiments showed:
12. Which one of the following is the most suitable medium for the culture of Drosophila melanogaster?
13. The phenotype of an organism is the result of:
14. Let us consider three independently assorting autosomal genes in Drosophila: A, B and C. What is the probability that a female of genotype AaBBCc when crossed to a male of AAbbCc will produce an offspring of genotype AABbcc?
15. A small amount of lethal mutation always tends to remain in the population. It is due to:

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