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Continuous self pollination results in inbreeding depression. Among the following which one DOES NOT favors self pollination and encourages cross pollination?

ASelf incompatibility

BProduction of bisexual flowers

CNon- synchronous pollen release and stigma receptivity

DAnther and stigma placed at different positions in some flowers

Answer:

B. Production of bisexual flowers

Read Explanation:

  • This increases the homozygosity of the race.

  • Continuous inbreeding reduces fertility, production, and immunity of the animals to natural calamities.

  • It reduces variations and thus chances of developing adaptations with the ever-changing environment.

  • This is known as inbreeding depression.


Related Questions:

The flowers of crocus and tulips show _______________ (i) Photo tropy (ii) Photo nasty (iii)Thermo nasty (iv) Haplo nasty (v) Nycti nasty

ദ്വിതീയ ഉപാപചയ വസ്തുക്കളാണ്

  1. (i) അബ്റിൻ, കോഡിൻ
  2. (ii) അഡിനിൻ, അലാനിൻ
  3. (iii) റിസിൻ, കുർക്കുമിൻ
  4. (iv) ലെസിത്തിൻ, യുറിഡിൻ
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    Which among the following is not a characteristics of umbel inflorescence ?

    (i) It is a modified spike

    (ii) The peduncle is condensed into a point.

    (iii) The flowers are pedicellate and arrows from a common point of the peduncle.

    (iv) All the flowers maybe of one type or two types.

    (v) A single whorl of involucre lies at the base.

    Hybrid Napier is multiplied by :