The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in the pedigree analysis is equivalent to
quantitative trait
Mendelian trait
polygenic trait
maternal trait
It is said that Mendel proposed that the factor controlling any character is discrete and independent. This proposition was based on the
observations that the offspring of a cross made between the plants having two contrasting characters shows only one character without any blending
self-pollination of $F_1$ offsprings
cross-pollination of $F_1$-generation with recessive parent
Two genes ' $A$ ' and ' $B$ ' are linked. In a dihybrid cross involving these two genes, the $F_1$ heterozygote is crossed with homozygous recessive parental type (aa bb ). What would be the ratio of offspring in the next generation?
$1: 1: 1: 1$
$9: 3: 3: 1$
$3: 1$
$1: 1$
In the $F_2$-generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are
phenotypes-4, genotypes-16
phenotypes-9, genotypes-4
phenotypes-4, genotypes-8
phenotypes-4, genotypes-9
Mother and father of a person with ' 0 ' blood group have ' $A$ ' and ' $B$ ' blood group respectively. What would be the genotype of both mother and father?
Mother is homozygous for ' A ' blood group and father is heterozygous for ' B '
Mother is heterozygous for ' A ' blood group and father is homozygous for ' B '
Both mother and father are heterozygous for ' A ' and ' B ' blood group respectively
Both mother and father are homozygous for ' A ' and ' B ' blood group respectively