Reproduction

The process by which an organism produces

others of its same kind. One form of

reproduction is …

Asexual ReproductionA new organism

(sometimes more than one) is

produced from one organism.

The offspring will have hereditary material

uniform with the hereditary material of the

parent organism. This means they will be genetically alike.

Types of Asexual

ReproductionParthenogenesis

Vegetative PropagationFragmentation or Regeneration

FissionBudding

ParthenogenesisProduce eggs that

develop into genetically identical versions of itself.

The population is entirely female. The females lay unfertilized eggs that develop into genetically identical females.

The Whiptail lizard lives in the Sonoran Desert in Arizona. This lizard will lay an egg which will grow into another

lizard.

Vegetative PropagationCommon in

household plants; a piece is cut with visual nodes, placed in water to develop roots, then planted in soil.

Another type is seen in the strawberry plants; they produce runners creating more plants.

FragmentationRegeneration

The ability to restore lost or damaged tissues, organs or limbs.

It is a common feature in invertebrates, like flatworms and sea stars.

Fission• Also called binary fission.• Becoming two by division

of the complete organism.• A type of cell division.

A single celled organism;

paramecium undergoing binary

fission.

Diphtheria bacteria live in the throat and produce

toxins. You are vaccinated for this

bacteria

Budding• Process by which a new, duplicate plant or

animal begins to form at the side of the parent and enlarges until an individual is created.

• Very common in plants.

Hydra in fresh waterTexas Prickly Pear Cactus

Pros• Faster and easier;

one parent so no need for fertilization.

• Doesn’t have to travel, can conserve energy, and be more discreet.

• More reliable, less steps to go wrong.

• No variations in the population; offspring look like the parent.

• Individual may not adapt to changing environment.

• Generally leads to overcrowding and a struggle to exist.

Cons

TAKS ReviewWhich statement about the asexual

reproduction of the cell in the diagram below is correct?

Cell Division

A. Cell A contains the same DNA as cells B and C.B. Cell C has DNA that is only half identical to cell B.C. Cells B and C have identical DNA but not the

same as cell A.D. Cells A, B, C contain completely different DNA.

Animal Cell “A” Animal Cell “C”

Animal Cell “B”

Resources:

• http://classes.design.ucla.edu/Spring05/152BC/projects/saito/ex3/planaria.jpg

• http://microbewiki.kenyon.edu/index.php/Corynebacterium

• http://www.vsf.cape.com/~jdale/science/starfishregenerating.jpg

• http://wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab/BinaryFissionParamecium.jpg

• http://www.gardenaction.co.uk/fruit_veg_diary/fruit_veg_mini_project_february_2_strawberry2.asp

• http://shakyard.com/planting

• http://judyepstein.com/images/DesertImages/Budding-Purple-LG.jpg

• http://www.waycross.edu/faculty/bmajdi/hydra%20budding.jpg

• Ohio Department of Education – Asexual Reproduction (document in 09-010 folder

• http://ims.ode.state.oh.us/ODE/IMS/Lessons/Web_Content/CSC_LP_S02_BB_L06_I05_01.pdf

• www.tutorvista.com

• http://www.edupic.net/lizards.htm