7D57 Copycat - PowerPoint Presentation

Slide1

7D57 Copycat

Types of ReproductionSlide2

Background

You are not an exact copy of your two parents.There are many animals like us that also do not make exact copies of themselves.However some organisms do copy themselves.Slide3

Asexual Reproduction

Some organisms reproduce by making copies

of themselves. Only

1 parent is needed

. It may not be a perfect copy but it is very close.

Bacteria

and other

microorganisms reproduce asexually. This means they simply divide in 2.Each new organism produced (offspring) is identical to the parent cell.Slide4

Clones

The two identical offspring are both called Clones of

the original

single parent

organism.

A clone inherits all of its traits from 1 parent.

This process can repeat many times creating lots of identical clones of that one parent cell.

Each clone is identical except in rare cases where a random change occurs (mutation).This causes offspring to have different traits

.Slide5

Budding

Some multicell

organisms reproduce asexually

Budding is the process where a

small new organism grows out from the parent’s body

.

One budding organism is the

Hydra.Slide6

Runners

Strawberry plants reproduce

asexually

by tiny new plants

growing off

of a

rootlike

runner.Each little plant can separate and become a new individual identical to its parent.Organisms produced by asexual reproduction are considered clones since they inherit all traits from one parent

.Slide7

Sexual Reproduction

Most animals and plants reproduce sexually.

They

inherit traits from two parents

, not one.

You are

not a perfect copy

of either of your parents, but you are also not a perfect blend of your parents’ traits either.What determines which traits you get from each of your parents?Slide8

Fertilization

Sexual reproduction: when a tiny male sperm cell unites with an egg cell from a female.The

union

of the

sperm and the egg

is called

fertilization

. The new zygote cell has genes from both egg and sperm. Since genes help determine traits, individuals have traits inherited from both parents.Slide9

Being Unique

No two sperm or egg cells

have

exactly the

same information

, so

no two offspring

made by the same parents are identical.Unique genes means unique traits.An exception is identical twins that form when one fertilized egg splits

before beginning to grow and develop. The two identical eggs then become two genetically identical offspring.Slide10

Twins

Identical and FraternalSlide11

Chromosome Pairs, xy=maleSlide12

Compare/Contrast Reproduction

ASEXUAL

REPRODUCTION

SEXUAL

REPRODUCTION

One

parent

Two parents

Offspring are identical to parent

Offspring inherit traits from both parents

Clones

Not

identical offspring

Often microorganisms

or small organisms

Usually larger plants and animals

DRAW and COLOR 2

EXAMPLES LIKE:

BACTERIA AND

A STRAWBERRY

PLANT

DRAW and COLOR 2

EXAMPLES LIKE A:

TREE

AND

LION

COMPARE AND CONTRAST BOTH ASEXUAL OR MORE PARAGRAPHS

AND SEXUAL REPRODUCTION USING ONE Slide13

Cloning

Animals like sheep & dogs can now be cloned.The nucleus (with genes) is removed from the body cell of sheep A and placed into an egg cell (with its nucleus removed) from sheep B. This fertilized egg is implanted into sheep B and develops into a baby sheep C that is genetically identical to the first sheep A.

So sheep C is a clone of the first sheep A.Slide14

Cloning ProcessSlide15

7D57 Copycat Analysis: paragraphs

Classify whether Sexual or Asexual. Explain.

Orange cat + black cat = multicolor cat

Red flower cut, put in water, grows to red flower

A male fish releases sperm cells into the water and one unites with an egg to form a new fish.

Small worm splits in half, and each grows fully.

A sheep is cloned.

If you could clone yourself, would you do it?