Fertilisation And Post-fertilisation Test
Fertilisation And Post-fertilisation
This is online test 02 for CBSE class 12 Biology Sexual Reproduction in Flowering Plants (Fertilisation and post-fertilisation).. There are 10 questions in this test with each question having around four answer choices.
Questions & Answers
1
Which kind of embryo is shown in figure below
- AGlobular embryoCorrect
- BMature embryo
- CPre-embryo
- DHeart shaped embryo
2
Embryonal axis has the radicle and root cap enclosed in an undifferentiated sheath is known as
- AColeoptile
- BEpocotyl
- CHypocotyls
- DColeorrhizaCorrect
3
The cleavage of the zygote or earlier stage of its development into two or more units to form many embryo is called as
- ASecondary polyembryony
- BPrimary polyembryony
- CCleavage polyembryonyCorrect
- DSpontaneous polyembryony
4
If an endosperm cell of angiosperm contain 24 chromosome, the number of chromosome in each cell of root is
- A24
- B16Correct
- C8
- D48
5
Embryology is
- ADevelopment of embryo only
- BMode of gametophyte formation
- CSporogenesis, fertilisation and fertilisation and embryogenesisCorrect
- DSporogenesis and fertilisation
6
The fertilisation in which male gametes are carried through pollen tube is called as
- APorogamy
- BSyngamy
- CSiphonogamyCorrect
- DChalazogamy
7
The endosperm cells in angiosperms are
- ATetraploid
- BDiploid
- CTriploidCorrect
- DHaploid
8
Double fertilisation is fusion of
- AOne male gamete with egg and other with two polar nucleiCorrect
- BTwo eggs and polar nuclei with pollen nuclei
- COne male gamete with egg and other with secondary nucleus.
- DTwo eggs
9
The meiocyte of an onion plant contains 32 chromosomes. Calculate the number of chromosomes found in its endosperm
- A16 chromosomes
- B96 chromosomes
- C32 chromosomes
- D48 chromosomesCorrect
10
Epiblast present in certain monocot embryo represents
- AMesocotyl
- BScutellum
- CRudimentary leaves
- DSecond cotyledonCorrect