Advertisements
Advertisements
Question
Design a test-cross.
Advertisements
Solution 1
If the progenies produced by a test cross show 50% dominant trait and 50% recessive trait, then the unknown individual is heterozygous for a trait. On the other hand, if the progeny produced shows a dominant trait, then the unknown individual is homozygous for a trait.
Solution 2
APPEARS IN
RELATED QUESTIONS
What is a test cross?
Explain the statement of
Test cross is back cross but back cross is not necessarily a test cross.
Long answer type question.
Define test cross and explain its significance.
Read the following case and select the correct option.
ln a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring.
Therefore, it can be concluded that;
In order to achieve a dihybrid test cross, the F1 hybrid YyRr should be crossed will which one of the following genotypes?
A cross between Fl hybrid and its parent is called______.
In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of the black seed plant, with which of the following genotype will you cross it?
A purple flowered pea plant is crossed with a white flowered pea plant. Among the progeny, there are equal number of purple and white flowered plants. The result indicates that it is ______.
Statement I - Back cross is the crossing of F1 - hybrid with one of the two parents from which they were derived.
Statement II - Test cross involves the crossing of F1 - hybrid with its homozygous recessive parent.
In light of above statements, choose the correct answer from the option given below.
When a test cross produces all offspring with the dominant phenotype, what can be concluded about the dominant parent's genotype?
What is the expected genotypic ratio when an F₁ heterozygous individual (Tt) is back crossed with the homozygous dominant parent (TT)?
In a back cross between F₁ (Tt) and the homozygous recessive parent (tt), what phenotypic ratio is observed?
What is the primary practical application of test crosses in agriculture?
Based on test cross principles, if a tall plant consistently produces dwarf offspring when crossed with homozygous dwarf plants, what is the tall plant's genotype?
