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Sexual Reproduction In Flowering Plants

307 Questions Start Errorless Test
All Exams Allen Errorless
J & K CET 2005 Q101 Errorless 4. Fertilization MCQ
Double fertilization results in the production of
A.
Haploid nucleus
B.
Diploid nucleus
C.
Triploid nucleus
D.
Tetraploid nucleus
HP PMT 2005 Q102 Errorless 5. Embryo and endosperm MCQ
Which of the following inspite of being dicot lacks cotyledons
A.
Cuscuta
B.
Pistia
C.
Dianthus
D.
Ranunculus
Sexual Reproduction in Flowering Plants 849
O ubd 1960
CPMT 2005 Q103 Errorless 5. Embryo and endosperm MCQ
Function of embryonal suspensor in angiosperms is to
A.
Serve as channel for $H _ { 2 } O$
B.
Push embryo deeper into endosperm
C.
Release growth hormones
D.
Transfer nutrients from parent sporophyte to young embryo
AIIMS 2005 Q104 Errorless 5. Embryo and endosperm MCQ
In which one of the following would you expect to find glyoxysomes
A.
Endosperm of wheat
B.
Endosperm of castor
C.
Palisade cells in leaf
D.
Root hairs
Odisha JEE 2005 Q105 Errorless 6. Parthenocarpy MCQ
Parthenogenesis is a term of Or Which one of the following generates new genetic combinations leading to variation [NEET (Phase-II) 2016]
A.
Sexual reproduction
B.
Asexual reproduction
C.
Budding
D.
Regeneration
Manipal 2005 Q106 Errorless 6. Parthenocarpy MCQ
Seedless grapes are produced due to Or Seedless fruits in Vitis are formed due to [EAMCET 1995; MHCET 2000]
A.
Parthenocarpy
B.
Crossing over
C.
Parthenogenesis
D.
None of these
HP PMT 2005 Q107 Errorless 9. Self Evaluation Test MCQ
Who is author of book "Introduction to the Embryology" of Angiosperms
A.
Maheshwari
B.
Birbal Sahni
C.
T.S. Mahabale
D.
J.S. Singh
Manipal 2005 Q108 Errorless 9. Self Evaluation Test MCQ
Which of these is not essential for allogamy
A.
Self sterility
B.
Dichogamy
C.
Heterogamy
D.
None of these
CPMT 2004 Q109 Errorless 1. Microsporogenesis MCQ
Rarely among angiosperms the pollen grains influenced the endosperm. This is called as
A.
Metaxenia
B.
Nemec phenomenon
C.
Xenia
D.
Mesogamy
MHCET 2004; Kerala PMT 2008; CPMT 2010; AIIMS 2013 Q110 Errorless 2. Megasporogenesis MCQ
Which one of the most common embryo sac in flowering plant
A.
Monosporic, 8 nucleated and 7 celled
B.
Monosporic, 7 celled and 7 nucleated
C.
Bisporic, 8 nucleated and 7 celled
D.
Bisporic, 7 nucleated and 8 celled
CBSE PMT 2004 Q111 Errorless 2. Megasporogenesis MCQ
An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is
A.
Anatropous
B.
Orthotropous
C.
Hemitropous
D.
Campylotropous
AIIMS 2004; CPMT 2005; CBSE PMT 2005 Q112 Errorless 4. Fertilization MCQ
Through which cell of the embryo sac, does the pollen tube enter the embryo sac [NCERT Pg. No. 17]
A.
Egg cell
B.
Central cell
C.
Persistant sunergid
D.
Degenerated sunergid
Odisha JEE 2004, 09 Q113 Errorless 4. Fertilization MCQ
Triple fusion in angiosperm is the fusion of second sperm with
A.
Antipodal cell and one synergid cell
B.
Two antipodal cells
C.
Two synergid cells
D.
Two polar nuclei
MHCET 2004 Q114 Errorless 4. Fertilization MCQ
After fertilization the outer integument forms
A.
Testa
B.
Tegmen
C.
Perisperm
D.
Pericarp
DPMT 2004 Q115 Errorless 5. Embryo and endosperm MCQ
The best example of polyembryony is
A.
Cocos
B.
Pea
C.
Capsicum
D.
Pinus
Odisha JEE 2004; MHCET 2015 Q116 Errorless 5. Embryo and endosperm MCQ
The gymnospermic endosperms differs from an angiospermic endosperm because in gymnosperms it is
A.
Haploid and developed from female gametophyte
B.
Diploid and developed from female gametophyte
C.
Triploid and developed after fertilization
D.
Triploid and developed before fertilization
AIEEE Pharmacy 2004; NEET (Phase-I) 2016 Q117 Errorless 5. Embryo and endosperm MCQ
In a seed of maize, scutellum is considered as cotyledon because it
A.
Protects the embryo
B.
Contains food for the embryo
C.
Absorbs food materials and supplies them to the embryo
D.
Converts itself into a monocot leaf
AIIMS 2004 Q118 Errorless 10. Assertion and Reason MCQ
Assertion : Insects visit flowers to gather honey. Reason: Attraction of flowers prevents the insects from damaging other parts of the plant.
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.
MHCET 2003, 05; AIIMS 2003; MP PMT 2005, 09; KCET 2010; WB JEE 2010; J & K CET 2012 Q119 Errorless 1. Microsporogenesis MCQ
Exine of pollen grains is composed of
A.
Pectocellulose
B.
Lignocellulose
C.
Sporopollenin
D.
Pollenkitt
BVP 2003 Q120 Errorless 1. Microsporogenesis MCQ
Meiosis can be observed in
A.
Spore mother cells
B.
Microspores
C.
Megaspores
D.
Tapetal cells
BHU 2003 Q121 Errorless 2. Megasporogenesis MCQ
For the formation of tetrasporic embryosac, how many megaspore mother cells are required
A.
1
B.
2
C.
3
D.
4
AFMC 2003 Q122 Errorless 3. Pollination MCQ
Which type of pollen grains are found in insect pollinated flowers
A.
Hygroscopic
B.
Light and sticky
C.
Light and rough
D.
Heavy and coloured
AIEEE Pharmacy 2003 Q123 Errorless 3. Pollination MCQ
Intra-species incompatibility can be overcome by
A.
Wetting of the stigma
B.
Bud-pollination
C.
Mixed-pollination
D.
Intra-ovarian pollination
MHCET 2003; AFMC 2005; Odisha JEE 2012 Q124 Errorless 3. Pollination MCQ
When anthers and stigma mature at the same time it is called
A.
Protandry
B.
Homogamy
C.
Isogamy
D.
Dichogamy
BVP 2003 Q125 Errorless 4. Fertilization MCQ
Germination of pollen grain on the stigma is
A.
Autogamy
B.
In vivo germination
C.
In vitro germination
D.
None of these