Hybrid breakdown refers to the condition when offspring are physiologically inferior to the following generation

  • A

    ${F_1}$

  • B

    ${F_2}$

  • C

    ${P_1}$

  • D

    All of these

Similar Questions

Assertion : Cross of $F_1$ individual with recessive homozygous parent is test cross.

Reason : No recessive individual are obtained in the monohybrid test cross.

  • [AIIMS 2012]

Pure tall plants are crossed with pure dwarf plants. In the $F_1$ generation all plants were tall. These tall plants of $F_1$ generation were selfed and the ratio of tall to dwarf plants obtained was $3 : 1$. This is called

In hybridization, $Tt × tt$ give rise to the progeny of ratio

  • [AIPMT 1999]

If a homozygous red-flowered plant is crossed with a homozygous white-flowered plant, the offspring would be

  • [AIIMS 1999]

When a true breeding pea plant that has yellow seeds is pollinated by a plant that has green seeds, all the $F_1$ plants have yellow seeds. This means that the allele for yellow is