Reproduction in flowering plants Quiz-09
Dear Readers,
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.
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Q1.
The number of female nuclei involved in double fertilization is
Solution
(b) Two polar nuclei one egg cell (total 3 nuclei)
(b) Two polar nuclei one egg cell (total 3 nuclei)
Q2.
Genotype of endosperm is ZZA, find out the genotype of male and female plant respectively
Solution
(c) Endosperm union of male gametes and female polar nuclei, which is diploid in nature. In question the genotype of endosperm in ZZA means ZZ belongs to female and A belongs to male gametes, so genotype of male plant is = AA and female plant is = ZZ
(c) Endosperm union of male gametes and female polar nuclei, which is diploid in nature. In question the genotype of endosperm in ZZA means ZZ belongs to female and A belongs to male gametes, so genotype of male plant is = AA and female plant is = ZZ
Q3.
Milky water of tender coconut is
Solution
(d) Milky water of tender coconut is called liquid endosperm.
(d) Milky water of tender coconut is called liquid endosperm.
Q4.
Self-pollination means
Solution
(c) Self-pollination involves the transfer of pollen grains from the anther to the stigma of the same flower.
(c) Self-pollination involves the transfer of pollen grains from the anther to the stigma of the same flower.
Q5.
Find out the ploidy nature of A,B,D,E in previous question
Solution
Q6.
Autogamy stands for
Solution
(a) Self-pollination When the process of pollination occurs in the same plant, it is called self-pollination. It is of two types (i) Autogamy When pollination takes of place in the same flower of a plant. Here, no pollinating agent is required (ii) Geitonogamy Transfer of pollen grains from anther to stigma of another flower of same plant. Although the geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant
(a) Self-pollination When the process of pollination occurs in the same plant, it is called self-pollination. It is of two types (i) Autogamy When pollination takes of place in the same flower of a plant. Here, no pollinating agent is required (ii) Geitonogamy Transfer of pollen grains from anther to stigma of another flower of same plant. Although the geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant
Q7.
When pollen is transferred from anther of a flower to stigma of the another of the another flower of the same plant, it is referred to as
Solution
(c) When pollen grains of one flower are transferred to the stigma of another flower belonging to either the same plant or genetically similar plant, it is referred to as geitonogamy.
(c) When pollen grains of one flower are transferred to the stigma of another flower belonging to either the same plant or genetically similar plant, it is referred to as geitonogamy.
Q8.
Functional megaspore develops into …A… also called …B…
A and B in the above sentence is
Solution
(a) A-female gametophyte, B-embryo sac. Female gametophyte is the combination of many cells. They are synergid cell, egg cell, antipodal cell and polar nuclei
(a) A-female gametophyte, B-embryo sac. Female gametophyte is the combination of many cells. They are synergid cell, egg cell, antipodal cell and polar nuclei
Q9.
Wind pollination is common in
Solution
(b)
(b)
Q10.
Out of the following choose the post-fertilisation events
Solution
(c) Though organogenesis is a part of post fertilization events but it is included in the embryogenesis. Endospermogenesis is the post-fertilisation event under which formation of endosperm takes place
(c) Though organogenesis is a part of post fertilization events but it is included in the embryogenesis. Endospermogenesis is the post-fertilisation event under which formation of endosperm takes place
