The inheritance pattern of a gene over generations among humans is studied by pedigree analysis. The character studied in pedigree analysis is equivalent to:

All genes located on the same chromosome:

Mendel proposed that the factor controlling any character is discrete and independent. This proposition was based on:

Occasionally, a single gene may express more than one effect. The phenomenon is called:

Distance between the genes and percentage of recombination shows:

In the F₂ generation of a Mendelian dihybrid cross, the numbers of phenotypes and genotypes are:

In sickle cell anaemia, glutamic acid is replaced by valine. Which one of the following triplets codes for valine?

Two genes A and B are linked. In a dihybrid cross involving these genes, the F₁ heterozygote is crossed with the homozygous recessive parental type (aabb). What would be the ratio of offspring in the next generation?

Which are nitrogenous base not found in DNA?

Mendel's law of independent assortment holds good for genes situated on:

Conditions of a karyotype 2n ± 1 and 2n ± 2 are called:

In a certain taxon of insects, some have 17 chromosomes and others have 18 chromosomes. The 17- and 18-chromosome-bearing organisms are:

Which of the following will not result in variations among siblings?

If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is: