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Asexual reproduction презентация
Содержание
- 1. Asexual reproduction
- 2. ASEXUAL REPRODUCTION Asexual reproduction is the
- 3. 1.There is the less variation among of
- 4. 3.All cells contain same hereditary information as
- 7. Asexual reproduction is seen in unicellular organisms, some plants and simple animals.
- 8. TYPES OF
- 9. The cell divides by amitosis or
- 10. Binary fission is seen in bacteria, Amoeba, Paramecium and other unicellular organisms.
- 14. BUDDING The cell or cells
- 15. Budding is seen in hydra, jellyfish, sponges and yeasts.
- 20. Spore formation is seen in some fungi, algae and protozoa.
- 21. VEGETATIVE PROPOGATION
- 22. 1-Tuber 2-Stolons and runners 3-Rhizome 4-Cutting
- 30. REGENERATION
- 31. Planaria,hydra and starfish can reproduce
- 34. TISSUE CULTURE
- 36. BIOLOGY DEPARTMENT Thanks your attention
ASEXUAL REPRODUCTION Asexual reproduction is the production of offspring from a single parent by simple division.
Слайд 2ASEXUAL REPRODUCTION
Asexual reproduction is the production of offspring from a
single parent by simple division.
Слайд 31.There is the less variation among of offspring. 2. It is rapid
and many offspring are formed.
PROPERTIES OF ASEXUAL REPRODUCTION
Слайд 43.All cells contain same hereditary information as the parent cell. 4.Asexual reproduction
occurs by means of mitotic cell division.
5.There is only one parent organism.
PROPERTIES OF ASEXUAL REPRODUCTION
Слайд 8TYPES OF
ASEXUAL REPRODUCTION
Binary fission.
Budding
Sporulation
Vegetative propagation
Regeneration.
Tissue culture.
Слайд 9 The cell divides by amitosis or mitosis. The nucleus divides
first, then the cytoplasm of the cell is separated.
BINARY FISSION
Слайд 14BUDDING
The cell or cells divide mitotically forming a bud
on the parent organisms. And then bud separates from parents.
Слайд 19 SPORULATION
Many plants produce specialized cells called spores. Each spore can produce a new organism. Spore is surrounded by special thick, hard cell wall.
Слайд 21VEGETATIVE
PROPOGATION
Root, stem and
leaves are called vegetative organs in plants. When they give rise to new plants this process is called vegetative reproduction.
Слайд 221-Tuber
2-Stolons and runners
3-Rhizome
4-Cutting
5-Stem grafting.
TYPES OF
VEGETATIVE PROPOGATION
Слайд 30 REGENERATION
Regeneration is the ability to
regenerate a missing part is possible to varying extents in all organisms. Some organisms regenerate lost body part.
EX:Crab, lizard and earthworm.
EX:Crab, lizard and earthworm.
Слайд 31 Planaria,hydra and starfish can reproduce by regeneration.
If a hydra is cut in half, each of this will grow into a complete planaria.
EXAMPLES
Слайд 34 TISSUE CULTURE
Tissue culture enables the propagation
of a new tissue from a small amount of the parent tissue.
