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Law of independent assortment of Mendel ...

Law of independent assortment of Mendel was proved by :-

A

Monohybrid cross

B

Reciprocal cross

C

Dihybrid cross

D

Back cross

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**Step-by-Step Solution:** 1. **Understanding Mendel's Laws**: Gregor Mendel, the father of genetics, proposed several laws based on his experiments with pea plants. Among these is the Law of Independent Assortment, which states that alleles for different traits are distributed to gametes independently of one another. 2. **Types of Genetic Crosses**: - **Monohybrid Cross**: This involves a single trait and examines the inheritance of one characteristic (e.g., flower color). - **Reciprocal Cross**: This is a cross where the traits of the parents are reversed to see if the results are consistent. - **Dihybrid Cross**: This involves two traits and examines the inheritance of two characteristics simultaneously (e.g., flower color and seed shape). - **Back Cross**: This is a cross between a hybrid and one of its parents or an individual genetically similar to its parents. 3. **Identifying the Correct Cross**: The Law of Independent Assortment can best be demonstrated through a dihybrid cross. In a dihybrid cross, the inheritance of one trait does not affect the inheritance of another trait, which is a direct illustration of the law. 4. **Phenotypic Ratio**: When performing a dihybrid cross, the expected phenotypic ratio of the offspring is 9:3:3:1. This ratio supports the idea that the traits assort independently. 5. **Conclusion**: Based on the understanding of these crosses, the Law of Independent Assortment was proved by the dihybrid cross. **Final Answer**: The Law of Independent Assortment of Mendel was proved by the **Dihybrid Cross**. ---
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Knowledge Check

  • Law of independent assortment can be explained with the help of

    A
    dihybrid cross
    B
    test cross
    C
    back cross
    D
    monohybrid cross

  • Read the passages and answer the questions that follow Gregor Johann Mendel proposed the law of inheritance or Mendel's law of inheritance after conducting several experiments on the garden pea plants. This includes three laws that are the law of dominance, the law of segregation and the law of independent assortment. More and more studies and discoveries were made on genetics after Mendel's studies. However, regularities of his experiment are applied only to the organisms he consciously chose for his experiments. These laws do not explain some pattern of genetic inheritance. Apart from these laws, there are several deviations. The principle of independent assortment doesn't apply if the genes are close together (or linked) on a chromosome. Also, alleles do not always interact in a standard dominant/ recessive way, particularly if they are codominant or have differences in expressivity or penetrance. Mendel used ................... for his experiments.

    A
    Pisum sativum
    B
    Pisum album
    C
    Oryza sativa
    D
    Oryza Orientalis

  • Read the passages and answer the questions that follow Gregor Johann Mendel proposed the law of inheritance or Mendel's law of inheritance after conducting several experiments on the garden pea plants. This includes three laws that are the law of dominance, the law of segregation and the law of independent assortment. More and more studies and discoveries were made on genetics after Mendel's studies. However, regularities of his experiment are applied only to the organisms he consciously chose for his experiments. These laws do not explain some pattern of genetic inheritance. Apart from these laws, there are several deviations. The principle of independent assortment doesn't apply if the genes are close together (or linked) on a chromosome. Also, alleles do not always interact in a standard dominant/ recessive way, particularly if they are codominant or have differences in expressivity or penetrance. ABO blood grouping in humans is an instance of .............

    A
    complete dominance
    B
    incomplete dominance
    C
    codominance
    D
    pseudoscience

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    Read the passages and answer the questions that follow Gregor Johann Mendel proposed the law of inheritance or Mendel's law of inheritance after conducting several experiments on the garden pea plants. This includes three laws that are the law of dominance, the law of segregation and the law of independent assortment. More and more studies and discoveries were made on genetics after Mendel's studies. However, regularities of his experiment are applied only to the organisms he consciously chose for his experiments. These laws do not explain some pattern of genetic inheritance. Apart from these laws, there are several deviations. The principle of independent assortment doesn't apply if the genes are close together (or linked) on a chromosome. Also, alleles do not always interact in a standard dominant/ recessive way, particularly if they are codominant or have differences in expressivity or penetrance. In incomplete dominance..........

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    Read the passages and answer the questions that follow Gregor Johann Mendel proposed the law of inheritance or Mendel's law of inheritance after conducting several experiments on the garden pea plants. This includes three laws that are the law of dominance, the law of segregation and the law of independent assortment. More and more studies and discoveries were made on genetics after Mendel's studies. However, regularities of his experiment are applied only to the organisms he consciously chose for his experiments. These laws do not explain some pattern of genetic inheritance. Apart from these laws, there are several deviations. The principle of independent assortment doesn't apply if the genes are close together (or linked) on a chromosome. Also, alleles do not always interact in a standard dominant/ recessive way, particularly if they are codominant or have differences in expressivity or penetrance. In what mode of inheritance, the F_1 progeny exhibit characteristics of both the parents?

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