Embibe Experts Solutions for Chapter: Heredity & Evolution, Exercise 2: KVPY PREVIOUS YEAR QUESTIONS

Of the periods listed below, which ONE is the earliest period when Ostracoderms, the jawless and finless fishes, appeared?

If the genotypes determining the blood groups of a couple are ${\mathrm{I}}^{\mathrm{A}}{\mathrm{I}}^{\mathrm{B}}$ and ${\mathrm{I}}^{\mathrm{A}}{\mathrm{I}}^{\mathrm{B}}$, then the probability of their first child having type $\mathrm{O}$ blood group is

A cross between two individuals heterozygous for two pairs of genes was carried out. Assuming segregation and independent assortment the number of different genotype and phenotypes obtained respectively would be?

Which one of the following genetic phenomena is represented by the blood group $\mathrm{AB}$?

The mode of speciation mediated by graphical isolation is referred to as

In a diploid organism, when the locus $\mathrm{X}$ is inactivated, transcription of the locus $\mathrm{Y}$ is triggered. Based on observation. Which one of the following statements is CORRECT?

Papaya is a dioecious species with $\mathrm{XY}$ sexual genotype for male and $\mathrm{XX}$ for female. What will be the genotype of the embryos and endosperm nuclei after double fertilization?

If the gene pool of the locus X in the human genome is $4,$ then what would be the highest possible number of genotypes in a large population?