The germ pore in the pollen wall:

1. is an aperture in the pollen intine that allows the pollen tube to exit.
2. is the name of the nucleus of the microspore mother cell.
3. is formed where sporopollenin is located in the exine.
4. is an aperture in the pollen exine that allows the pollen tube to exit.
Subtopic:  Stamen: Microsporangium | Stamen: Male Gametophyte |
 80%
From NCERT
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The correct sequence of layers in the wall of an anther from outside to inside is:

1. Tapetum – Middle Layers – Endothecium – Epidermis
2. Epidermis – Endothecium – Tapetum – Middle layers
3. Epidermis – Endothecium – Middle layers – Tapetum
4. Tapetum – Endothecium – Middle layers – Epidermis
Subtopic:  Stamen: Anther | Stamen: Microsporangium |
 93%
From NCERT
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The outermost and innermost wall layers of microsporangium in an anther are respectively:
1. Endothecium and tapetum
2. Epidermis and endodermis
3. Epidermis and middle layer
4. Epidermis and tapetum

Subtopic:  Stamen: Microsporangium |
 86%
From NCERT
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Match each item in Column I with one in Column II and select the correct answer from the codes given:

A.

Pollen exine

P.

Cellulose and pectin

B.

Pollen intine

Q.

Sporopollenin

C.

Antipodals

R.

Nutrition to the embryo sac

D.

Synergids

S.

Pollen tube guidance

A.

B.

C.

D.

1.

P

Q

R

S

2.

Q

P

S

R

3.

Q

P

R

S

4.

P

Q

S

R

Subtopic:  Stamen: Microsporangium | Stamen: Male Gametophyte |
 83%
From NCERT
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Which layer of the anther wall helps in its dehiscence?

   

1. A 2. B
3. C 4. D

Subtopic:  Stamen: Microsporangium |
From NCERT
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