Home
Class 12
BIOLOGY
A pea plant with purple flowers was cro...

A pea plant with purple flowers was crossed with white flowers producing 50 plants with only purple flowers . On selfing, these plants produced 482 plants with purple flowers and 162 with white flowers. What genetic mechanism accounts for these results ? Explain

Text Solution

Verified by Experts


Phenotypic ratio si
Purple flowered plants : White flowered plants
3 (482) : 1 (162)
Mechanism is as follows
(i) Factors segregate from each other that remained together in a hybrid during gamete formation
(ii) A homozygous parent produces all gametes that are similar while heterozygous parent produces two kinds of gametes in equal ratio
Promotional Banner

Topper's Solved these Questions

  • HEREDITY AND VARIATION

    ARIHANT PUBLICATION|Exercise PART-I-Questions for Practice ( Long Answer Type Questions )|7 Videos
  • HEREDITY AND VARIATION

    ARIHANT PUBLICATION|Exercise PART-I Questions For Assessment (Very Short Answer Type Questions ) M.C.Q|8 Videos
  • HEREDITY AND VARIATION

    ARIHANT PUBLICATION|Exercise PART-I-Questions for Practice (Very Short Answer Type Questions ) Express in one or two word(s) |2 Videos
  • HEALTH AND DISEASES

    ARIHANT PUBLICATION|Exercise CHAPTER PRACTICE (Short Answer Type II Questions )|3 Videos
  • HUMAN REPRODUCTION

    ARIHANT PUBLICATION|Exercise CHAPTER PRACTICE (Long Answer Type Questions)|4 Videos

Similar Questions

Explore conceptually related problems

In Mirabilis jalapa, when red flowered plants are crossed with white flowered ones, the offsprings were pink. It is the case of

Which of the following shows triploid nature in flowering plants ?

In Mirabilis , a hybrid for red ( RR ) and white ( rr ) flower produces pink ( Rr ) flower . A plant with pink flower crossed with white flower , the expected phenotypic ratio is :

A true breeding plant producing red flowrs is crossed with a pure plant producing white flowers . Allele for red colour of flower is dominant . After selfing the plants of first filial generation , the proportion of plants producing white flowers in the progeny would be :

Seed formation without fertilization in flowering plants involves the process of:

Which of the following is a post - fertilization event in flowering plants ?