Question

Choose the correct statement for a set of offsprings produced as a result of dihybrid cross which obeys the law of independent assortment.

• A. Half the offspring are tall with white flowers and half are short with white flowers.
• B. All the offspring are tall or short and have white or purple flowers.
• C. All the offspring are short and have purple flowers.
• D. All the offspring are tall and have white flowers.
• E. All the offspring are tall and have purple flowers.

Answer 1

The correct option is B All the offspring are tall or short and have white or purple flowers.

Law of independent assortment tells about segregation and distribution of factors governing two different traits. The independent assortment of non-homologous chromosomes during meiosis results in an independent assortment of two separate genes each of which carries an allelic pair. According to Mendel’s law of independent assortment, a cross between two pure breeding variety of tall and purple flower and the short and white flower will produce progeny having tall or short and white or purple flowers as a gene for plant height and flower colours assort independently.

So, the correct answer is option B.