A human family's pedigree chart shows the inheritance of a recessive genetic disorder (shaded shapes indicate affected individuals). The father is normal, and the mother is a carrier for the disorder.

Dominant and Recessive Traits, Sex Determination in Human Beings | PadhAiPro

Question

CASE_STUDIESDominant and Recessive TraitsSex Determination in Human BeingsCBSE PYQ4 sub-questions

Similar Questions

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

Consider the following statements : (i) The sex of a child is determined by what it inherits from the mother. (ii) The sex of a child is determined by what it inherits from the father. (iii) The probability of having a male child is more than that of a female child. (iv) The sex of a child is determined at the time of fertilisation when male and female gametes fuse to form a zygote. The correct statements are :

MCQ (Single)Sex Determination in Human Beings

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

Assertion (A) : Sex of the children will be determined by what they inherit from their mother. Reason (R) : Women have XX sex chromosomes.

Assertion-ReasonSex Determination in Human Beings

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