Home
Class 12
BIOLOGY
If two Pea plants having red (dominant) ...

If two Pea plants having red (dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% white. The genotype constitution of the two parents would be

A

Both homozygous

B

Both heterozygous

C

Both hemizygous

D

One homozygous and other heterozygous.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • GENETIC BASIS OF INHERITANCE

    DINESH PUBLICATION|Exercise Check your Grasp|23 Videos
  • GENETIC BASIS OF INHERITANCE

    DINESH PUBLICATION|Exercise Check your Grasp|23 Videos
  • FRUIT AND SEED DISPERSAL

    DINESH PUBLICATION|Exercise CHECK YOUR GRASP|10 Videos
  • GROWTH, REPAIR, REGENERATION AND AGEING

    DINESH PUBLICATION|Exercise Brain Teasers-VI[B]|6 Videos

Similar Questions

Explore conceptually related problems

If two pea plants having red (dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% are white. The genotypic constitution of the parents having red coloured flowers will be:

A pea plant parent having violet coloured flowers with unknown genotype was a plant having white coloured flowers in the progeny 50% of the flowers were violet and 50% were white. The genotype constitution of the parent having violet coloured flower was:

A tall pea plants bearing violet flowers is given with its unknown genotypes. Explain by working out the crosses how would you find the correct genotypes with respect to the two traits mentioned only by " selfing" the given plants.

Hybrid of pure red flowered and white flowered Pea is crossed to pure red flowered plant. The progeny shall be

If hybrid red flowered plants of pea are crossed back to pure red flowered parent, the progeny will show :

A pea plant producing yellow coloured and round seeds is given with unknown genotypes. Explain how you would find the correct genotypes of the plants with respect to the two traits mentioned. Work out the cross and name it.

In a test cross progeny of pea plants ,all were bearing violet flowers.Give the genotypes of the parent pea plants.

When heterzygos red (dominant) flower is crossed with white flower the progany would be

DINESH PUBLICATION-GENETIC BASIS OF INHERITANCE-Revision Questions From Competitive Exams
  1. In Mendelian dihybrid cross when heterozygous round Yellow are self cr...

    Text Solution

    |

  2. In a polygenic cross Aa Bb Cc xx Aa Bb Cc, the phenotypic ratio of off...

    Text Solution

    |

  3. If two Pea plants having red (dominant) coloured flowers with unknown ...

    Text Solution

    |

  4. Variation found in offspring are important component of

    Text Solution

    |

  5. An allele contributed by one parent is I^(A) and allele contributed by...

    Text Solution

    |

  6. Given below are assertion and reason. Point our if both are true with ...

    Text Solution

    |

  7. F(2) generation has genotypic and phenotypic ratio of 1:2:1. It is

    Text Solution

    |

  8. A man with genotype EEFfGgHH produces 'P' number of different sperms. ...

    Text Solution

    |

  9. A cross between tall and dwarf Pea plants, yielded 124 tall and 126 dw...

    Text Solution

    |

  10. A cross between two heterozygous individuals will yield homozygous ind...

    Text Solution

    |

  11. A test cross is performed to know

    Text Solution

    |

  12. Haemoglobins of normal and sickle cell patient are subjected to electr...

    Text Solution

    |

  13. Both alleles express in heterozygote when they are

    Text Solution

    |

  14. Among the seven pairs of contrasting traits in pea plant as studied by...

    Text Solution

    |

  15. All are dominant traits studied by Mendel

    Text Solution

    |

  16. In the cross YYRR xx yyrr, the number of green coloured seeds in F(2) ...

    Text Solution

    |

  17. A women with straight hair marries a man with heterozygous curly hair ...

    Text Solution

    |

  18. Which is mismatched

    Text Solution

    |

  19. A women with blood group 'O' has a child with blood group 'O'. Father ...

    Text Solution

    |

  20. Sickle cell anamia is caused by substitution of sixth position

    Text Solution

    |