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Reproduction in Organisms

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Examine the figure below and select the right option giving all the four part (A, B,C and D) correctly identified.

  • A

    B

    C

    D

    Archegoni Ophore

    Female thallus

    Gemma cup

    Rhizoids

  • A

    B

    C

    D

    Archegoni

    Female thallus Bud Foot
  • A

    B

    C

    D

    Seta

    Sporophyte Protonema Rhizods
  • A

    B

    C

    D

    Antheridiophore

    Male thallus Globule Roots

A.

A

B

C

D

Archegoni Ophore

Female thallus

Gemma cup

Rhizoids

Marchantia, a liverwort, is dioecious. The female thallus bears female sex organs called archegonia on special branches called archegoniophores. The plant's body is anchored by unicellular rhizoids.

Marchantia, a liverwort, is dioecious. The female thallus bears female sex organs called archegonia on special branches called archegoniophores. The plant's body is anchored by unicellular rhizoids.

370 Views

Micropropagation is based on :
  • (A) tissue culture
  • (B) hybridization
  • (C) microtomy
  • (D) genetic control.

A.

(A) tissue culture
918 Views

Vegetative type of reproduction means :
  • (A) plant portion is used as a means of propagation
  • (B) seed is used as a means of propagation
  • (C) flower is used as a means of propagation
  • (D) None of the above.

A.

(A) plant portion is used as a means of propagation
958 Views

Testa and tegmen are present in :
  • (A) flower
  • (B) ovary
  • (C) seed
  • (D) seed coat.

D.

(D) seed coat.
2138 Views

The entry of pollen tube into embryo sac through the integuments is termed as :
  • (A) porogamy
  • (B) chalazogamy
  • (C) mesogamy
  • (D) Both (a) and (b)

C.

(C) mesogamy
1067 Views

Bryophyllum is vegetatively propagated by :
  • (A) Bulbil 
  • (B) Leaf buds
  • (C) rhizome
  • (D) Offset.

B.

(B) Leaf buds
854 Views