The most obvious outcome of the reproductive process is the generation of individuals of similar design, but in sexual reproduction they may not be exactly alike. The resemblances as well as differences are marked. The rules of heredity determine the process by which traits and characteristics are reliably inherited. Many experiments have been done to study the rules of inheritance.

Importance of Variation in Reproduction, Inherited Traits in Organisms, Mendel's Experiments with Pea Plants | PadhAiPro

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CASE_STUDIESImportance of Variation in ReproductionInherited Traits in OrganismsMendel's Experiments with Pea PlantsCBSE PYQ3 sub-questions

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If pea plants with round and green seeds (RRyy) are crossed with pea plants having wrinkled and yellow seeds (rrYY), the seeds developed by the plants of F₁ generation will be :

MCQ (Single)Mendel's Experiments with Pea PlantsDominant and Recessive TraitsLaw of Independent Assortment

Assertion (A) : A human child bears all the basic features of human beings. Reason (R) : It looks exactly like its parents, showing very little variations.

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Chromosomes : (i) carry hereditary information from parents to the next generation. (ii) are thread like structures located inside the nucleus of an animal cell. (iii) always exist in pairs in human reproductive cells. (iv) are involved in the process of cell division. The correct statements are :

MCQ (Single)Inherited Traits in Organisms

Mendel worked out the rules of heredity by working on garden pea using a number of visible contrasting characters. He conducted several experiments by making a cross with one or two pairs of contrasting characters of pea plant. On the basis of his observations he gave some interpretations which helped to study the mechanism of inheritance.

CASE_STUDIESMendel's Experiments with Pea PlantsDominant and Recessive TraitsLaw of Independent Assortment

In one of Mendalian experiments, when F₁ generation pea plants with round yellow seeds were self-pollinated, pea seeds with the following combinations were obtained in F₂ generation : Seeds: Round yellow - 800, Round green - 275, Wrinkled yellow - 268, Wrinkled green - 90 Analyse the result and describe the mechanism of inheritance of traits which explains the above results.

TextMendel's Experiments with Pea PlantsDominant and Recessive TraitsLaw of Independent Assortment

Mendel crossed pure tall pea plants (TT) with pure short pea plants (tt) and obtained F₁ progeny. When the plants of F₁ progeny were self-pollinated, plants of F₂ progeny were obtained.

CASE_STUDIESMendel's Experiments with Pea PlantsDominant and Recessive TraitsLaw of Segregation