Deviation from Mendelian Genetics
Deviation from Mendelian Genetics: Overview
This Topic covers sub-topics such as Incomplete Dominance, Pleiotropy, Polygenic Inheritance, Codominance, Multiple Allelism, Deviation from Mendelism and, Blood Inheritance
Important Questions on Deviation from Mendelian Genetics
The fundamental cause of the sickle-cell disease is a change in the structure of:
A plant of Antirrhinum majus with red flowers was crossed with another plant of the same species with white flowers. The plants of the F1 generation bore pink flowers. The pattern of inheritance is exhibiting:
A woman with blood group O married a man with AB group. The possible genotype of their progeny would be:
A plant of Antirrhinum majus with red flowers was crossed with another plant of the same species with white flowers. The plants of the F1 generation bore pink flowers. The pattern of inheritance is exhibiting:
ABO blood groups in humans are controlled by the gene I. It has three alleles and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur?
With respect to the ABO group, there are four major blood types because this blood group is determined by
A child of blood group O cannot have parents of blood groups
The genotype of B-group father of an O-group child is:
When one gene controls two or more different characters simultaneously, the phenomenon is called
Which one of the following pairs of features is an excellent example of polygenic inheritance?
Grain colour in wheat is determined by three pairs of polygene. Following the cross AABBCC (dark colour) and aabbcc (light colour), in generation, what proportion of the progeny is likely to resemble either parent?
Mirabilis jalapa shows
A single point mutation in gene 'X' results in breathing difficulty, hypertension as well as partial sterility. Which among the following phenomenon best explains the observed phenotype?
The phenomenon of pleiotropism refers to:
A quantitative character is controlled by four polygenes. Find out probability of parental plant in F₂ generation ?
Cross between AB blood group and A blood group give two phenotypes. Then genotype of A is ?
Blood group of a person is B and he is suffering from albinism. What percentage of his gametes will have genotypes IBa?
Blood group 'B' will have alleles
The shape of seed depends on starch granules size; so inheritance of seed shape shows _____ relationship, while inheritance of starch grains show______.
Genes responsible for ABO blood group determines which of the following biomolecules of RBC plasma membrane?
