Angiosperm Embryo Sac and its Types

Angiosperm Embryo Sac Types

Three Main Angiosperm Embryo Sac Types Angiosperm embryo sac mainly are of three types. The first one is monosporic embryo sac; the second one is known as bisporic embryo sac and the last one is called tetrasporic embryo sac. We previously studied development of female gametophyte, which is a Normal Type 8 – nucleate monosporic embryo sac. However, the normal type 8 – nucleate ...

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Chloroplast Structure and Function Detailed

Photosynthesis Organelle

Photsynthesis organelle is also referred by another name known as chloroplast. Chloroplasts are defined as the sub cellular organelle (Plastid) in green plants in which chlorophyll is present and process of photosynthesis takes place. The chloroplasts vary in shape, size from species to species. but typically, they are 1 – 2 μm (1 μm = 0.001 mm) thick and 5 ...

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Process of Photosynthesis Step by Step

Process of Photosynthesis

Process of photosynthesis is utilized by autotrophic organisms such as green plants, algae and cyanobacteria (photosynthetic bacteria). They use the photosynthesis process step by step in order to make their own organic nutrients from simple inorganic nutrients (water, carbon dioxide and minerals) and radiant energy. The radiant energy is converted into chemical energy of specific organic compounds, mainly sugars and ...

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Seed Dispersion And Seed dispersal methods

Seed Dispersal

Seed dispersal and fruit dispersal both of them refers to the carrying of these particular structures to places away from the plants producing them to other wider regions. Plants have adopted this dispersal mechanism because they are fixed to the ground therefore they had to develop a mechanism for distribution of their seeds and fruits. What Does Dispersion Mean? Basically, ...

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Megasporogenesis -Ovule Development

Ovule Development

Ovule Development And Megasporogenesis in Angiosperms Ovule development takes place by the appearance of primordium as a protuberance on the surface of the placenta. It grows into a conical structure with a rounded tip. This is the Nucellus or Megasporangium Proper. From the base of the nucellus, one or two layers of tissue develop, which grow upward and form the integuments. ...

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Megasporophyll And Types of Ovule In Angiosperms

Carpel or Megasporophyll

Megasporophyll of Angiosperms megasporophyll is an elongated appendage and is a modified folded leaf. The folding encloses Megasporangia (ovules) in a chamber, the locule. Carpel or megasporophyll are present in Gynoecium or pistil is the female reproductive whorl of flower consisting of one or more carpels or Megasporophll. Each carpel consists of three parts 1: Stigma, which receives pollen grains. ...

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Microspore And Pollination Process In Angiosperms

Microspore

Microspore And Pollination Process Microspore in angiosperm is a unicellular, uninucleate structure, possessing two coats, the outer exine, and the inner Intine and contains a large central nucleus and dense cytoplasm. The exine is thick, cuticularized and tough layer and it is often provided with spinous outgrowths, warts or reticulations and sometimes smooth. The intine is a thin, delicate, cellulosic ...

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Plant Tissue Culture Techniques And Types

Plant Tissue Culture Technique

Plant tissue culture technique has provided an efficient selection tool for modern plant breeding. The plant tissue culture is made of different steps and their a procedure for this method. Their are different types of Plant tissue culture technique Tissue Culture: The term tissue culture is commonly used to describe in vitro and aseptic cultivation of any part on a ...

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Genetic Engineering Pros and Cons [Detailed]

Genetic Engineering Pros and Cons

Genetic Engineering Pros and Cons: Genetic engineering is providing one of the most important means by which crop plants will be improved in the future. It has a distinct advantage over recombination of plant genetic material brought about by natural and somatic hybridization because it allows Individual genes to be inserted into organisms into a way that is both precise ...

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Sanger Method Of DNA Sequencing Step by Step

Sanger Sequencing - Sanger Method of DNA Sequencing

Sanger method of DNA sequencing is an in-vitro method, which involves in-vitro synthesis of DNA strand complementary to one of the strands of the DNA being sequenced. Sanger sequencing is utilized for determining the nucleotide sequence of DNA. This DNA sequencing method was developed by F. Sanger as the method name suggest it self. The DNA sequencing steps involves random ...

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