AIPMT-MAINS Botany Principles of Inheritance and Variation Class 12 Questions

Which one of the following is a wrong statement regarding mutations?

A test cross is carried out to:

Test cross in plants or in Drosophila involves crossing

Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character

In Antirrhinum two plants with pink flowers were hybridized. The F₁ plants produced red, pink and white flowers in the proportion of 1 red, 2 pink and 1 white. What could be the genotype of the two plants used for hybridization? Red flower colour is determined by RR, and white by rr genes.

A cross in which an organism showing a dominant phenotype is crossed with the recessive parent in order to know its genotype is called

ABO blood grouping is controlled by gene I which has three alleles and show co-dominance. There are six genotypes. How many phenotypes in all are possible?

The fruit fly Drosophila melanogaster was found to be very suitable for experimental verification of chromosomal theory of inheritance by Morgan and his colleagues because :

Study the pedigree chart given below: What does it show?

Select the incorrect statement from the following: