Principles of Inheritance and Variation

Principles of Inheritance and Variation

Easy Questions

Advanced Botany

Plant Growth and Development
Organisms and Populations
Ecosystem
Biodiversity and Conservation
Environmental Issues
Microbes in Human Welfare
Strategies for Enhancement in Food Production
Molecular Basis of Inheritance
Principles of Inheritance and Variation
Sexual Reproduction in Flowering Plants
Reproduction in Organisms
The Living World
Respiration in Plants
Photosynthesis
Mineral Nutrition
Transport in Plants
Cell Cycle and Cell Division
Cell-The Unit of Life
Anatomy of Flowering Plants
Morphology of Flowering Plants
Plant Kingdom
Biological Classification
  1. A dihybrid condition is








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    Dihybrid condition involves simultaneous inheritance of two pairs of mendelian factors or genes.

    Correct Option: D

    Dihybrid condition involves simultaneous inheritance of two pairs of mendelian factors or genes.

  1. The allele which is unable to express its effect in the presence of another is called








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    The allele which cannot express its effect in the hybrid or in the presence of dominant allele is termed as recessive. It is denoted by small letter.

    Correct Option: D

    The allele which cannot express its effect in the hybrid or in the presence of dominant allele is termed as recessive. It is denoted by small letter.

  1. Red (RR) Antirrhinum is crossed with white (WW) one. Offspring RW are pink. This is an example of








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    Incomplete dominance is the phenomenon of none of the alleles being dominant, with the effect that the hybrid produced by crossing two pure individuals is a mixture between the parents.

    Correct Option: B

    Incomplete dominance is the phenomenon of none of the alleles being dominant, with the effect that the hybrid produced by crossing two pure individuals is a mixture between the parents.

  1. When a certain character is inherited only through female parent, it probably represents








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    Plasma genes present in the maternal cytoplasm are transmitted to offspring hence this type of inheritance is termed as cytoplasmic or maternal inheritance.

    Correct Option: B

    Plasma genes present in the maternal cytoplasm are transmitted to offspring hence this type of inheritance is termed as cytoplasmic or maternal inheritance.

  1. Mendel studied inheritance of seven pairs of traits in Pea which can have 21 possible combinations. If you are told that in one of these combinations, independent assortment is not observed in later studies, your reaction will be








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    Law of independent assortment is applicable to only those factors or genes which are located on different chromosomes. Probably the characters were present on same chromosome and showed linkage which Mendel might not have studied.

    Correct Option: B

    Law of independent assortment is applicable to only those factors or genes which are located on different chromosomes. Probably the characters were present on same chromosome and showed linkage which Mendel might not have studied.