Sexual reproduction in flowering plants: Pollination, fertilization

Special Modes-Apomixis

Introduction Flowering plants follow three modes of reproduction:  cross-pollination self-pollination special modes – apomixis (asexual reproduction) The phenomenon of apomixis occurs in over 35 different plant families, including cereals such as maize and wheat. The word ‘apomixis’ has Greek origin – ‘APO’ means “away from” and ‘MIXIS’ means “the act of mixing or mingling”. Antonie […]

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Sorts of Pollination

Offspring are procreated by organisms through reproduction. Other events are involved in this. In plants, pollination is the most common one.  Pollination  The pre-fertilization episodes, where pollen grains from anther are transmitted to the stigma of a flower are known as Pollination.  We know plants are motionless. They can’t have copulation with each other by

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Significance of Double Fertilization

Flowering plants are characterised by their use of double fertilisation. A female gamete unites with two male gametes to create a new gamete. A zygote is formed when one of the male gametes fertilises an egg, and endosperm is formed when the other male gamete connects two polar nuclei. Double fertilisation accelerates plant growth, resulting

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Significance of double fertilisation

Flowering plants are characterised by their use of double fertilisation. A female gamete unites with two male gametes to create a new gamete. A zygote is formed when one of the male gametes fertilises an egg, and endosperm is formed when the other male gamete connects two polar nuclei. Double fertilisation accelerates plant growth, resulting

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Significance of apomixis in plant

It is important in the plant breeding industry because apomixis is a method that allows for the development of seeds without the use of fertilisers. The hybrid seeds produced by this method are both cost-effective and efficient, allowing for large-scale production in a shorter period. This contributes to an increase in yield. To understand Apomixis,

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Self Pollination Types

Pollination is a very important process in the reproduction of plants and is performed by bees. Every organism’s primary goal is to reproduce in order to pass on their genes to the next generation. Plants, like people, are apathetic. When plants reproduce, one of the ways they do so is through the production of seeds,

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Scientific name of grasshopper

The grasshopper is one of the oldest living insect groups, with evidence dating back 250 million years. Grasshoppers, for example, make sounds by rubbing to attract females. However, in some species, even females make sounds by rubbing. They have powerful rear legs that aid in their escape from predators. Grasshoppers are plane feeders in general,

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Reproduction in Flowering Plants

Sexual reproduction The genetic material (DNA) from both parents is required for sexual reproduction. Gametes, or sex cells, are found in both the male and female reproductive organs of the parent plants. Male and female gametes mix to make babies when the genetic material from both gametes is combined. Fertilisation is the term used to

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Pre-Fertilisation Structures and Events

Introduction Both sexual reproduction and asexual reproduction occur in plants. Almost all flowering plants are sexually reproduced. Flowers are important because they include both male and female reproductive components, defined as androecium and gynoecium, respectively. Fertilisation Fertilisation in plants can be defined as the process of amphimixis that occurs as a result of pollination and

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization

Pre Pollination Development

Pollen grains are used to initiate the development of the male gametophyte while it is still present in the microsporangium or pollen sac (precocious germination). The microspore divides only twice during its life cycle. During the first mitotic division, a vegetative cell is formed, followed by the formation of a generative cell. Pre Pollination Development

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Biology, Class 12, NEET, Reproduction, Sexual reproduction in flowering plants: Pollination, fertilization