How many haploid nuclei are present in a mature pollen grain?

(1) One

(2) Two

(3) Three

(4) Four

Subtopic:  Double Fertilization |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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What is the correct sequence of the formation of female gametophyte in angiosperms?

(1) Nucellus, megapore tetrad, megaspore mother cell, megaspore, female gametophyte

(2) Megaspore tetrad, nucellus, megaspore mother cell, megaspore, female gametophyte

(3) Nucellus, megaspore mother cell, megaspore tetrad, megaspore, female gametophyte

(4) Megaspore mother cell, megaspore tetrad, megaspore, nucellus, female gametophyte

Subtopic:  Pistil: Female Gametophyte |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Primary endosperm nucleus (PEN) is formed by the fusion of

(1) 2 polar nuclei + 1 synergid cell nucleus

(2) 1 polar nucleus + 1 antipodal cell nucleus + 1 synergid cell nucleuus

(3) 2 polar nuclei + 1 male gamete nucleus

(4) 2 antipodal cell nuclei + 1 male gamete nucleus

Subtopic:  Endosperm |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Identify the parts labelled A, B, C and D in the given figure and select the correct option.

 

        A

        B

        C

        D

(1)

Scutellum  

Epiblast

Coleoptile

Coleorhiza       

(2)

Scutellum

Coleorhiza   

Coleoptile

Epiblast

(3)

Scutellum

Coleoptile

Coleorhiza   

Epiblast

(4)  

Epiblast

Coleoptile

Coleorhiza

Scutellum

Subtopic:  Embryo |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Match column I with column II and select the correct option from the given codes.

 

      Column - I

 

              Column - II

A.

Parthenocarpy

(i)

Seed formation without fertilization

B.

Polyembryony

(ii)

More than one embryo in same seed

C. 

Apomixis

(iii) 

Seedless fruits without fertilization

D.

Somatic embryogenesis   

(iv)  

Embryo develops from a somatic cell

(1) A - (iv), B - (ii), C - (iii), D - (i)

(2) A - (iii), B - (ii), C - (i), D - (iv)

(3) A - (i), B - (iv), C - (iii), D - (ii)

(4) A - (ii), B - (iii), C - (i), D - (iv)

Subtopic:  Apomixis & Polyembryony | Fruit |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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The following is the diagram of T.S. of anther. Identify the parts labelled A, B and C.

(1) A - Connective tissue, B - Pollen grains, C - Endothecium

(2) A - Endothecium, B -Connective tissue, C - Pollen grains

(3) A - Pollen grains, B - Connective tissue, C - Endothecium

(4) A - Endothecium, B - Pollen grains, C - Connective tissue

Subtopic:  Stamen: Microsporangium |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Select the option that contains all plants which produce non-endospermic seeds.

(1) Gram, Pea, Bean, Groundnut

(2) Castor, Peanut, Orchid, Wheat

(3) Coconut, Walnut, Wheat, Gram

(4) Castor, Maize, Coconu, Orchid

Subtopic:  Seed |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Pollination in Rafflesia is occurred by

a.   carrion flies

b.   elephant

c.   bat

d.   crow

 

Subtopic:  Pollination & Outbreeding Devices |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Censar mechanism of seed dispersal is found in

(1) Papaveraceae

(2) Liliaceae

(3) Leguminosae

(4) Rosaceae

To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Which one of the most common embryo sac in flowering plant?

(1) Monosporic, 8 nucleated and 7 celled

(2) Monosporic, 7 celled and 7 nucleated

(3) Bisporic, 8 nucleated and 7 celled

(4) Bisporic, 7 celled and 8 nucleated

Subtopic:  Stamen: Male Gametophyte |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level: