Reproduction in flowering plants Quiz-01

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NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions. About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus. Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced. .

Q1.   Pollen tube enters through
  •  Filiform apparatus
  •  Synergid cells
  •  Antipodal cells
  •  Chalazal cells
(b) Pollen tube enters through the synergid cell, guiding by filiform apparatus present in synergid cell. Synergid cells are present at the micropylar end of the ovule

Q2.   Insect pollinated flowers are
  •  Nector producing
  •  Colourful
  •  Fragnance producing
  •  All of these
(d) Majority of insect pollinated flower are large, colourful, fragrant and rich in nectar in order to attract the insects for pollination


  •  Cellular
  •  Helobial
  •  Nuclear
  •  None of these
(c) There are three types of endosperm development (i) Nuclear Type The primary endosperm nucleus divides repeatedly without wall formation to produce a large number of free nuclei. e.g., Maize, coconut and wheat (ii) Cellular Type Endosperm Every division of the primary endosperm nucleus is followed by cytokinesis e.g., Balsam, Datura, Petunia (iii) Helobial Endosperm The first division of primary endosperm nucleus is followed by transverse cytokinesis to form two cells. Further development in both the cells occurs like that of nuclear endosperm

Q4.   Non-endospermic seeds are seen in
  •  Groundnut
  •  Pea
  •  Beans
  •  All of these
(d) Endosperm may either be completely consumed by the developing embryo (e.g., pea, ground nut, beans) before seed maturation or it may persist in mature seed (e.g., castor and coconut) and may be used up during seed germination. The first condition is called endospermic, while second condition is called non-endospermic


  •  A-Degeneration antipodal cell, B-Primary endosperm nucleus, C-Primary endosperm cell, D-Synergid cell, E-Zygote
  •  A- Synergid cell, B- Antipodal cell, C- Zygote, D- Endosperm cell, E-Chalazal cell
  •  A-Degenerating Synergids, B- Zygote, C-Primary endosperm cell, D-Primary endosperm nucleus, E-Degenerating antipodal cell
  •  A- Zygote, B-Synergid, C-Primary endospermal cell, D-Primary endospermal nucleus, E-Degenerating antipodal cell

Q6.   Why seed dormancy takes place?
  •  Due to favourable conditions
  •  Due to unfavourable conditions
  •  Due to embryonic conditions
  •  Due to specific endosperm conditions
(c) As the seed matures, its water content is reduced and seed becomes relatively dry (10-15% moisture by mass). The general metabolic activity of the embryo slows down. The embryo may enter a state of inactivity called dormancy. When favourable condition are available (adequate moisture, oxygen, suitable temperature) seeds germinate


  •  A-Style, B-Stigma, C-Ovules, D-Thalamus, E-Ovary
  •  A- Ovary, B- Thalamus, C- Ovules, D- Style, E- Stigma
  •  A- Thalamus, B- Style, C- Stigma, D- Ovary, E- Ovules
  •  A- Stigma, B- Style, C- Ovules, D- Ovary, E- Thalamus
(d) A-Stigma - Landing ground for pollen grains B-Style - Passage for pollen tube C-Ovary - Embryos sac/fruit D-Ovules – Formation of seed E-Thalamus – Receptakle for ovary

Q8.   Flower is a
  •  Modified male plant only
  •  Modified female plant only
  •  Modified reproductive shoot
  •  Vegetative shoot system
(c) Flower is a modified shoot meant for reproduction


  •  A-MMC, B-Megaspore dyad, C-Nucellus, D-Nucleus
  •  A- Nucellus, B- Megaspore dyad, C- Nucellus, D-MMC
  •  A- Nucellus, B-MMC, C- Nucellus, D- Megaspore dyad
  •  A-MMC, B- Nucellus, C- Megaspore dyad, D- Nucleus
(a) A- Nucellus, B-MMC, C-Nucellus, D-Megaspore diad Development of Female Gametophyte Megaspore mother cell undergoes the reductional/meiotic division that give rise to four megaspores Three of them die (in majority of plants) only one remains viable. This method of embryo sac formation is called monosporic development The nucleus of the functional megaspore divides mitotically to form two nuclei, which move to the opposite poles forming two nucleate embryo sac Two more sequential mitotic nuclear divisions results in the formation of four nucleate and later 8 nucleate stages of embryo sac After the 8 nucleate stage cell walls are laid down leading to the organization of typical female gametophyte

Q10.   Nucellar polyembryony is reported in species of
  •  Gossypium
  •  Triticum
  •  Brassica
  •  Citrus
(d) Occurrence of more than one embryo in a seed is reffered as polyembryony. In many Citrus and mango varieties, some of the nucellar cells surrounding the embryo sac start dividing, protrude into the embryo sac and develop into the embryos. In such species, each ovule contains many embryos (nucellar polyembryony).

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Reproduction in flowering plants Quiz-01
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