Asexual Reproduction Of Plants Flashcards

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1
Q

what is the basic definition

A

The basic definition of asexual reproduction is the production of offspring with genetic material(DNA) from onlyoneindividual

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2
Q

what happens in asexual reproduction

A

diploidorganismwill use acell,sporesortissueto producediploid offspring. The offspring, therefore, would begenetically identicalto the parent as this type of reproduction lacks the fusion of gametes.

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3
Q

how do flowers reproduce asexually

A

throughvegetative propagation. Vegetative propagationonly utilises the process ofmitosis to grow new plants.

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4
Q

what are the different types of vegetative propagation

A

grafting,cutting,layeringof young stems, the production ofstolons,tubers,bulbsandtissue culture.

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5
Q

what is Asexual reproduction through grafting

A

thephysical process of plant organ manipulation to obtain desirable properties in new plants.

  • Two different plant organs (from the same species) are used in this process
  • Plant organs such as stems and leaves are cut and then re-joined with other stems and leaves.
  • This fusion of plant organs allows a new plant to develop.
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6
Q

what is Asexual reproduction through cutting

A

A developed (young and green) stem from an existing plant is cut and placed into a growth medium sauce such as soil or water

  • After a few days, thecutting develops a root system, and the cutting can then be planted as it will grow into a new plant
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7
Q

what is Asexual reproduction through layering

A

Layeringis a technique a farmer or a gardener will use to grow more plants from existing plants.

A young shoot growing above ground will be bent and spiked below the soil’s surface and the shoot will start developing a root system of its own, thereby creating a new plant. The diagram below illustrates this process.

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8
Q

what is Asexual reproduction through stolon’s

A

Stolons are shootsthat grow above or along the soil’s surface to produce additional roots, nodes and stems

  • Grass is an excellent example of how plants can asexually reproduce through stolons.
  • There will be new plants with their own root and leaf systems at the ends of the stolon.
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9
Q

what is Asexual reproduction through planting tubers

A

Tubers arethickened underground parts of a stem of plants such as potato plants.

  • Tubers contain high levels of starch that serve as an energy reserve for the plant to grow a new plant or additional plant organs such as roots and stems.
  • The buds we see on potatoes are young plants in the early process of developing into new plants.
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10
Q

what is Asexual reproduction through planting bulbs

A

Onions and garlic are good examples of plants growing frombulbs**.

  • Like tubers, bulbs store energy for plant regrowth and bulbs can sprout new roots and leaves that will grow into multiple new plants.
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11
Q

what is Asexual reproduction through tissue culture

A

Growing plants from atissue culture entails the following:

  • Plant cells, plant tissue or small pieces of plant organs such as roots and leaves are placed into a sterile growth medium to stimulate growth.
  • Each cell, tissue culture or small section of plant organs can grow into new plants.
  • This technique is sometimes calledmicropropagation and it can produce large numbers of new plants simultaneously.
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