Principles of Inheritance and Variation · Biology · IAT (IISER)

The following pedigree diagram shows the inheritance of a rare genetic disorder (filled shapes depict affected individuals). Which of the following is the most likely pattern of inheritance of the disorder?

In an island with 10,000 individuals, four have sickle cell anemia, a recessive autosomal disease. Assuming that the locus is in Hardy-Weinberg equilibrium, how many individuals in that island are expected to be heterozygous for the disease allele?

The following pedigree chart shows the inheritance of a genetic disorder. I-2 and III-2 are the only affected individuals. Which one of the following is the correct pattern of inheritance of the disorder, and the genotype of the II- 3 individual?

A hypothetical plant species shows two flower colour phenotypes- red and white. Red is dominant over white. In a population, this flower colour locus was found to be in HardyWeinberg equilibrium. If 490 out of a total population size of 1000 plants were found to be white-flowered, how many of the red-flowered plants will be heterozygous?