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Identify Each Part in a Flowering Plant and Write Whether It is Haploid (N) Or Diploid (2n) - Biology

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प्रश्न

Identify each part in a flowering plant and write whether it is haploid (n) or diploid (2n).

Ovary ———————————

Anther ———————————

Egg ———————————

Pollen ———————————

Male gamete ———————————

Zygote ———————————

उत्तर

Ovary Diploid (2n)

Anther Diploid (2n)

Egg Haploid (n)

Pollen Haploid (n)

Male gamete Haploid (n)

Zygote Diploid (2n)

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पाठ 1: Reproduction in Organisms - Exercises [पृष्ठ १८]

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एनसीईआरटी Biology [English] Class 12
पाठ 1 Reproduction in Organisms
Exercises | Q 11 | पृष्ठ १८

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

(a) Coconut palm is monoecious, while date palm is dioecious. Why are they so called?


A liverwort plant is unable to complete its life cycle in a dry environment. State two reasons


Explain the importance of syngamy and meiosis in a sexual life cycle of an organism.


Examine a few flowers of any cucurbit plant and try to identify the staminate and pistillate flowers. Do you know any other plant that bears unisexual flowers?


Mention the ploidy of the different types of cells present in the female gametophyte of an angiosperm.


The following question(s)/statement(s) has four suggested answers. Choose the correct option in the following case.

After fertilisation, the integuments of an ovule develop into : __________.


External fertilisation occurs in majority of ______.


Choose the correct statements.

Given below are a few statements related to external fertilization.

  1. The male and female gametes are formed and released simultaneously
  2. Only a few gametes are released into the medium
  3. Water is the medium in a majority of organisms exhibiting external fertilization
  4. Offspring formed as a result of external fertilization have better chance of survival than those formed inside an organism

In flowering plants both male and female gametes are non-motile. The method to bring them together for fertilization is ______.


Syngamy means ______.


Which of the following statements is true of date palm?


Which is correct?


Meiosis is best observed in dividing ______.


Which plant will lose its economic value if its fruits are produced by induced parthenocarpy?


Why is vivipary an undesirable character for annual crop plants?


What is true about the change in fertilized eggs of humans?


Maximum number of chromosomes in gametes are presented in ______.


In haploid organisms that undergo sexual reproduction, name the stage in the life cycle when meiosis occurs. Give reasons for your answer.


Fertilisation is the key process in sexually reproducing organisms and it acts as a vital link between two generations. Flowering plants adopt a unique pattern of sexual reproduction as compared to other organisms.
  1. Explain the process of fertilisation in angiosperms.
  2. What is the precise location and function of filiform apparatus in the embryo sac of angiosperms?
  3. Fruits and seeds are generally formed due to fertilisation. Name the process involved in the production of the following without fertilisation:
    1. Fruits
    2. Seeds

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