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प्रश्न
Define the following term:
Dihybrid cross
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उत्तर
A cross between parents differing in two heritable traits is called a dihybrid cross. e.g., a cross of a pure, tall, round seeded plant with a dwarf, wrinkled-seeded plant.
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संबंधित प्रश्न
What is a test cross?
Design a test-cross.
Explain the significance of a test cross.
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;
A cross between Fl hybrid and its parent is called______.
Match List I with List II -
| List-I | List-II |
| A. Two or more alternative forms of a gene | I. Back cross |
| B. Cross of F1 progeny with homozygous recessive parent | II. Ploidy |
| C. Cross of F1 progeny with any of the parents | III. Allele |
| D. Number of chromosome sets in plant | IV. Test cross |
Choose the correct answer from the options given below:
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?
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.
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?
