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Sexual Reproduction In Flowering Plants

554 Questions Start Allen Test
All Exams Allen Errorless
J & K CET 2008 Q76 Errorless FERTILIZATION MCQ
The ovary after fertilization is converted into
A.
Embryo
B.
Endosperm
C.
Fruit
D.
Seed
CBSE PMT 2008; AMU (Med.) 2009 Q77 Errorless Embryo and endosperm MCQ
Endosperm is consumed by developing embryo in the seed of
A.
Pea
B.
Maize
C.
Coconut
D.
Castor
Kerala PMT 2008 Q78 Errorless Embryo and endosperm MCQ
In the monocotyledonous seeds the endosperm is separated from the embryo by a distinct layer known as Or The outermost proteinaceous layer of endosperm of maize grain is called [CPMT 1993; MH CET 2003; CPMT 2005]
A.
Testa
B.
Aleurone layer
C.
Tegmen
D.
Scutellum
E.
Coleoptile
Kerala PMT 2008 Q79 Errorless Embryo and endosperm MCQ
Select the correct order of endosperm types
A.
Cellular, helobial, free nuclear
B.
Cellular, free nuclear, helobial
C.
Helobial, free nuclear, cellular
D.
Free nuclear, cellular, helobial
E.
Free nuclear, helobial, cellular
AIIMS 2008; NEET 2020 Q80 Errorless Critical Thinking MCQ
The plant parts which consist of two generations one within the other
(i) Pollen grains inside the anther
(ii) Germinated pollen grain with two male gametes
(iii) Seed inside the fruit
(iv) Embryo sac inside the ovule
A.
(i) and (iv)
B.
(i) only
C.
(i), (ii) and (iii)
D.
(iii) and (iv)
CBSE PMT 2007 Q81 Errorless Microsporogenesis MCQ
Which one of the following is surrounded by a callose wall
A.
Microspore mother cell
B.
Male gamete
C.
Egg
D.
Pollen grain
KCET 2007 Q82 Errorless Microsporogenesis MCQ
In the given diagram name the parts A, B, C, D and E
A.
A - germ pore, B - generative cell, C ā€“ intine, D ā€“ exine, E - vegetative cell
B.
A - germ pore, B - generative cell, C - exine, D - entine, E - vegetative cell
C.
A ā€“ intine, B ā€“ exine, C - germ pore, D - generative cell, E ā€“ vegetative cell
D.
A ā€“ exine, B ā€“ entine, C - vegetative cell, D ā€“ germ pore, E ā€“ generative cel
MP PMT 2007 Q83 Errorless Microsporogenesis MCQ
An anther with two microsporangia is found in
A.
Hibiscus
B.
Cucurbits
C.
Legumes
D.
Corianders
MP PMT 2007; BHU 2012 Q84 Errorless Megasporogenesis MCQ
If the number of chromosomes in root cells is 14, what wil be the number of chromosomes in synergids cells of an ovule of that parent
A.
7
B.
14
C.
21
D.
Incomplete information
MH CET 2007; MP PMT 2009; Odisha JEE 2011 Q85 Errorless FERTILIZATION MCQ
Which of the following floral parts forms pericarp after fertilization
A.
Nucellus
B.
Outer integument
C.
Ovary wall
D.
Inner integument
Kerala PMT 2007; NEET 2019 Q86 Errorless Embryo and endosperm MCQ
Which one of the following statements regarding post fertilization development in flowering plants is incorrect
A.
Ovary develops into fruit
B.
Zygote develops into embryo
C.
Central cell develops into endosperm
D.
Ovules develop into embryo sac
GUJCET 2007 Q87 Errorless Embryo and endosperm MCQ
From which cells peripheral region of radicle is produced
A.
Vegetative cell
B.
Hypophysis
C.
Apical octant
D.
Micropylar octant
AIIMS 2007 Q88 Errorless Self Evaluation Test MCQ
Match the following ovular structure with post fertilization structure and select the correct alternative
Column-IColumn-II
(A)Ovule
(B)Funiculus
(C)Nucellus
(D)Polar nuclei
(P)Endosperm
(Q)Aril
(R)Seed
(S)Perisperm Codes Codoe
A.
A-Q, B-R, C-S, D-P
B.
A-Q, B-R, C-P, D-S
C.
A-S, B-R, C-Q, D-P
D.
A-S, B-R, C-P, D-Q
AIIMS 2007 Q89 Errorless Assertion and Reason MCQ
Assertion : 7-celled, 8 nucleate and monosporic embryosac is called polygonum type of embryo sac. Reason: It was discovered by Hofmeister for the first time in polygonum
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
KCET 2006 Q90 Errorless Microsporogenesis MCQ
In the angiosperm ovule, central cell of the embryo sac, prior to the entry of pollen tube, contains
A.
A single haploid nucleus
B.
One diploid and one haploid nuclei
C.
Two haploid polar nuclei
D.
One diploid secondary nucleus
CBSE PMT 2006 Q91 Errorless Megasporogenesis MCQ
The arrangement of the nuclei in a normal embryo sac in the dicot plants is [NCERT Pg. No. 11]
A.
2 + 3 + 3
B.
3 + 3 + 2
C.
2 + 4 + 2
D.
3 + 2 + 3
Kerala PMT 2006 Q92 Errorless POLLINATION MCQ
In Salvia pollination takes place by
A.
Animals
B.
Water
C.
Air
D.
Insects
DPMT 2006 Q93 Errorless Embryo and endosperm MCQ
Nuclear endosperm has 14. Nuclear endosperm has
A.
Every nuclear division followed by wall formation
B.
Initially free-nuclear divisions followed by wall formation
C.
First division followed by wall formation and other free nuclear
D.
None of the above
BHU 2006; CPMT 2010 Q94 Errorless Embryo and endosperm MCQ
Ruminate endosperm is commonly found in seeds of
A.
Cruciferae
B.
Compositae
C.
Euphorbiaceae
D.
Annonaceae (Areca nut)
Bihar CECE 2006; WB JEE 2009 Q95 Errorless Parthenocarpy MCQ
Seedless fruit in banana is produced because of
A.
Asexual reproduction
B.
Parthenogenesis
C.
Triploid
D.
Cross pollination
CBSE PMT 2006 Q96 Errorless Critical Thinking MCQ
What would be the number of chromosomes in the cell of the aleurone layer in a plant species with 8 chromosomes in its synergids
A.
32
B.
8
C.
16
D.
24
HPMT 2005 Q97 Errorless Microsporogenesis MCQ
Pollen grains are formed in
A.
Anther
B.
Stigma
C.
Filament
D.
Pollen sac
CBSE PMT 2005; MP PMT 2010 Q98 Errorless Megasporogenesis MCQ
When the ovule is curved and embryo sac becomes horseshoe shaped, such an ovule is called
A.
Amphitropous
B.
Circinotropous
C.
Campylotropous
D.
Orthotropous
J & K CET 2005 Q99 Errorless POLLINATION MCQ
The process of transfer of pollen grains from anther to stigmatic surface of the flower with the help of water is called
A.
Anemophily
B.
Zoophily
C.
Hydrophily
D.
Ornithophily
Bihar CECE 2005 Q100 Errorless FERTILIZATION MCQ
Which of the following is not true for double fertilization [NCERT Pg. No. 18]
A.
Discovered by Nawaschin
B.
Male gamete and secondary nucleus fused to form Endosperm nucleus
C.
Endosperm nucleus is diploid
D.
Endosperm provide nutrition to embryo