MCQs of Biology – Test Cross

If an organism is crossed with homozygous recessive individual, it is called:

A cross between homozygous recessive and heterozygous plant is:

A cross – used to ascertain whether a dominant is homozygous or heterozygous is termed:

Cross between recessive parent and F1 hybrid is called:

Tt x tt cross is called:

Test cross is cross of:

The term test cross – refers to a cross between:

IN a test cross we perform a cross between:

A test cross distinguishes between:

Which of the following pairs on hybridization produces 1: 1 phenotypic ratio?

Test cross is:

Which statement about a test cross is not true?

A cross between F1 hybrid and a recessive parent gives a ratio of:

Phenotypic ratio of monohybrid test cross is:

In tomoatioes, round fruit (R) is dominant over oblong fruit (r). What plant that resulted from a test cross:

Heterozygous purple flower is crossed with recessive white flower. The progeny has the ratio :

How many phenotypic classess are expected from the test cross of Aa BbCcDdEE?

To detennine heterozygosity or homozygosity a plant must be crossed with:

Which of the following cross is used to detennine heterozygosity or homozygosity of parents?

Tt mats with tt. What will bed characteristic of offsprings?

When heterozygous red (dominant) flower is crossed with white flower the progeny would be:

Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration is called :

Test cross involves:

When tall and dwarf plants are crossed, from which cross 1:1 ratio is obtained ?