Asexual reproduction Asexual reproduction is reproduction without sex by which an organism reproduces through MITOSIS Mitosis is a form of cell replication that makes EXACT copies of the parent cell ID: 387628
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Slide1
Sexual vs. Asexual ReproductionsSlide2
Asexual reproduction
Asexual reproduction is reproduction without
sex, by which an organism reproduces through
MITOSIS
.
Mitosis is a form of cell replication that makes
EXACT
copies of the parent cell.
So in asexual reproduction the offspring are
IDENTICAL COPIES
to the parent in every single way. (clones) Slide3
WHAT DOES ASEXUAL reproduction ?
This type of reproduction is common among some single-cell
organisms, amoebas, bacteria, and hydras.
Some multicellular organisms that use asexual reproduction are Fungi, Coral, Starfish and lots of plants. Slide4
Asexual Reproduction Slide5
Asexual Reproduction
Binary Fission
Binary fission is a method of
asexual
reproduction. It is common in prokaryotes. A living cell divides into two cells. The two cells should be identical,
Budding
A
new organism develops from an outgrowth or bud due to cell division at one particular site. The new organism remains attached as it grows, separating from the parent organism only when it is
mature.Slide6
Sexual Reproduction
Sexual reproduction is a way of reproduction of some animals and plants. Some
protists
and fungi also reproduce this
way.
Offspring
is made by a cell from the
male
and a cell of the
female
.Slide7
Sexual Reproduction
Gametes (Egg and sperm cells) are produced by a process called Meiosis.
They only have one set of chromosomes so they are haploid. Slide8
The combination of genes from parents and
crossing
over in Prophase I allows for changes in genes to occur.
Offspring are not identical to their parents.
When the sperm and egg cell combine they form a
zygote
that is
diploid
. Slide9
Asexual reproduction
Pros
No mate needed. Many offspring produced quickly
Cons
No variation in the offspringSlide10
Sexual Reproduction
Pro
Genetic variation in the offspring.
Con
Requires both sexes to
participate and that takes a lot of time.