Principles of Inheritance and Variation

Four pedigrees are shown, where square represents male and circle represents female. Affected individuals are represented as filled squares and circles. Note that carriers are not indicated and the penetrance of the…

In the given pedigree, circles represent females and squares represent males. Filled shapes indicate affected individuals, while unfilled shapes indicate unaffected individuals. Based on the pedigree analysis, consider…

In the given pedigree, circles represent females and squares represent males. Filled shapes indicate affected individuals, while unfilled shapes indicate unaffected individuals. Based on the pedigree analysis, consider…

In the given pedigree, circles represent females and squares represent males. Filled shapes indicate affected individuals while unfilled shapes indicate unaffected individuals. Based on the pedigree information provided…

In the given pedigree, circles represent females and squares represent males. Filled shapes indicate affected individuals while unfilled shapes indicate unaffected individuals. Based on the pedigree information…

The pedigree shown below represents the inheritance pattern of X-linked recessive color blindness trait (genotype $\mathrm{X}^c$). In the pedigree, circles represent females and squares represent males. Filled shapes…

In the given pedigree, circles represent females and squares represent males. Filled shapes indicate affected individuals while unfilled shapes indicate unaffected individuals. Vitamin D resistant rickets exhibits…

In the given pedigree, circles represent females and squares represent males. Filled shapes indicate affected individuals for a particular trait, while unfilled shapes indicate unaffected individuals. Carrier status is…

In the given pedigree, circles represent females and squares represent males. Filled shapes indicate affected individuals; while, unfilled shapes indicate unaffected individuals for a particular disease controlled by…

Barbara McClintock observed non-Mendelian pigmentation patterns in maize (figure 1) mediated by transposons, as also observed in Petunia (figure 2 and 3). These somatic changes were inheritable as evident from the…

A cross was performed between two parent plants of unknown genotypes. The offspring were segregated based on two flower characteristics i.e. flower colour [magenta $(M)$ or white] and flower position [axillary $(A)$ or…

A group of researchers performed a genetic survey of two different human populations, one living in a deep tropical forest and the other in a faraway metropolitan city of the same country. Their haemoglobin genes were…