MCQ on Genetics Part 1: Introduction to Genetics

If the genotypes of the parents were AABBccddeeFF and aabbCCDDEEff, what would be the genotype of the progeny?

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:

A small amount of lethal mutation always tends to remain in the population. It is due to:

Polydactyly is a dominant trait, yet many individuals having single dominant alleles do not show any sign of polydactyly. This is known as:

The possible type of gametes formed from genotype AABbCCDdEe will be:

The traits studied by Mendel in his classical experiments showed:

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?

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

In a genetic test the 9 : 7 ratio in the F2 generation represents:

When a heterozygous offspring is crossed with the homozygous recessive parent, the cross is called:

The suppression of the activity of one gene by another non-allelic gene is called:

Which one of the following is the most suitable medium for the culture of Drosophila melanogaster?

The phenotype of an organism is the result of:

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?

Cystic fibrosis is: