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Sexual Reproduction In Flowering Plants

554 Questions Start Allen Test
All Exams Allen Errorless
CPMT 1996 Q176 Errorless Parthenocarpy MCQ
Which of the following is parthenocarpic fruits
A.
Orange
B.
Papaya
C.
Pomegranate
D.
Apple
RPMT 1995 Q177 Errorless Microsporogenesis MCQ
Mature male gametophyte is made up of
A.
One cell
B.
Two cells
C.
Three cells
D.
Four cells
BHU 1995, 2005 Q178 Errorless Microsporogenesis MCQ
Ubisch bodies found in tapetal cell help in formation of
A.
Pollenkitt and pollinia
B.
Exine
C.
Sporopollenin
D.
Intine and pollenkitt
MP PMT 1995 Q179 Errorless Microsporogenesis MCQ
Germpore is the region where the exine is
A.
Thick
B.
Uniform
C.
Thick and uniform
D.
Absent
Manipal MEE 1995; MP PMT 1996 Q180 Errorless Megasporogenesis MCQ
Caruncle is derived from
A.
Cotyledons
B.
Integument
C.
Peduncle
D.
None of the above
RPMT 1995 Q181 Errorless Megasporogenesis MCQ
In Capsella meiosis takes place during
A.
Development of pollen grains
B.
Development of egg
C.
Germination of zygote
D.
Development of embryo sac
BHU 1995 Q182 Errorless POLLINATION MCQ
Feathery stigma is present in
A.
Wheat
B.
Pea
C.
Ceasalpinia
D.
Datura
Manipal MEE 1995; CPMT 1999; MHCET 2001, 05; MP PMT 2008; J & K CET 2008; Odisha JEE 2011 Q183 Errorless FERTILIZATION MCQ
When the pollen tube enters through the micropyle, it is termed as
A.
Chalazogamy
B.
Mesogamy
C.
Porogamy
D.
None of the above
RPMT 1995; Kerala PMT 2004 Q184 Errorless FERTILIZATION MCQ
Number of nuclei taking part in double fertilization is
A.
2
B.
3
C.
4
D.
5
MP PMT 1995 Q185 Errorless FERTILIZATION MCQ
How much time is generally required/taken by the pine plant from pollination to fertilization
A.
Four months
B.
Thirteen months
C.
Two years
D.
Four years
Manipal MEE 1995;Kerala PMT 2004; RPMT 2006; Odisha JEE 2009; AIPMT 2015; NEET (Phase-I) 2016 Q186 Errorless Embryo and endosperm MCQ
Milky water of green coconut is Or The coconut water and the edible part of coconut are equivalent to [CBSE PMT (Pre.) 2012] Or The morphological nature of the edible part of coconut is [NEET 2017]
A.
Liquid nucellus
B.
Liquid of female gametophyte
C.
Liquid endosperm / free nuclear endosperm
D.
Liquid embryo
E.
Liquid gametes
RPMT 1995; AFMC 1999 Q187 Errorless Embryo and endosperm MCQ
Fusion product of polar nuclei and male gamete is
A.
Triple fusion
B.
Primary endosperm nucleus
C.
Zygote
D.
Secondary nucleus
BHU 1995 Q188 Errorless Embryo and endosperm MCQ
When vegetative cell of zygote form embryo, it is called
A.
Apospory
B.
Apomixis
C.
Diploid polyembryony
D.
Adventive polyembryony
BHU 1994; GUJCET 2007 Q189 Errorless Microsporogenesis MCQ
These processes are necessary for the complete development of male gametophyte from pollen mother cell
A.
One meiotic and two mitotic division
B.
One meiotic cell division and one mitotic cell division
C.
Two meiotic cell division and one mitotic cell division
D.
Two mitotic cell division
CBSE PMT 1994; BHU 2008 Q190 Errorless Megasporogenesis MCQ
An orthotropous ovule is one in which micropyle and chalaza are
A.
In straight line of funiculus
B.
Parallel to funiculus
C.
At right angles to funiculus
D.
ObliquƩ to funiculus
MP PMT 1994, 2000 Q191 Errorless Megasporogenesis MCQ
Female gametophyte of angiospermic plants is represented by
A.
Oospore
B.
Egg
C.
Carpel
D.
Pollen grain
KCET 1994; AIIMS 1998; CBSE PMT 2002; Odisha JEE 2012 Q192 Errorless POLLINATION MCQ
Pollination by slug and snails is called
A.
Ornithophilous
B.
Malacophilous
C.
Anemophilous
D.
Chiropterophilous
AFMC 1994 Q193 Errorless POLLINATION MCQ
Correct definition of pollination is
A.
Transfer of pollen grain from anther to stigma
B.
Germination of pollen grain
C.
Growth of pollen tube in ovule
D.
Visits of insects in flower
BHU 1994 Q194 Errorless POLLINATION MCQ
A close relation between flower and pollinating agent is best exhibited by Or In which of the following pollination takes place by lever mechanism
A.
Cocos
B.
Salvia
C.
Yucca
D.
Avena
BHU 1994 Q195 Errorless POLLINATION MCQ
Pollination characteristically occurs in
A.
Angiosperms and fungi
B.
Angiosperms and gymnosperms
C.
Pteridophytes and angiosperms
D.
Bryophytes and angiosperms
JIPMER 1994; DUMET 2010 Q196 Errorless POLLINATION MCQ
The transfer of pollen grain from the stamen to the stigma of the same flower is Or The process where by a perfect flower is pollinated by its pollen is called [NCERT]
A.
Autogamy
B.
Allogamy
C.
Geitonogamy
D.
Xerogamy
CMC Vellore 1994 Q197 Errorless POLLINATION MCQ
Progeny produced as a result of cross pollination
A.
Shows high degree of variability and is evolutionary important
B.
Is sterile
C.
Has recessive characters
D.
Is homozygous with phenotypic uniformity
MP PMT 1994, 95 98, 99, 2001, 06; CPMT 2002; RPMT 2006; Odisha JEE 2008; J & K CET 2012 Q198 Errorless Embryo and endosperm MCQ
Endosperm in Angiosperm (Flowering Plants) is Or The endosperm of Brassica is [DPMT 1992]
A.
Haploid
B.
Diploid
C.
Triploid
D.
Polyploid
CPMT 1994, 95, 98; CBSE PMT 1995; CBSE PMT (Pre.) 2011; BHU 2012 Q199 Errorless Embryo and endosperm MCQ
Presence of many embryos (Polyembryony) is a characteristic feature of
A.
Citrus
B.
Mango
C.
Banana
D.
None of these
BHU 1994 Q200 Errorless Critical Thinking MCQ
Despite high level of heterozygosity, the progeny derived from seed of a cross pollinated plant was found to be completely uniform. One reason for this may the phenomenon of [NCERT Pg. No. 22]
A.
Parthenocarpy
B.
Apomixis
C.
Induced mutation
D.
Polyploidy