reproduction what’s the difference in these two forms of reproduction?
TRANSCRIPT
ReproductionReproduction
What’s the difference in What’s the difference in these two forms of these two forms of
reproduction?reproduction?
Essential Question:Essential Question:How does sexual and How does sexual and asexual reproduction asexual reproduction
affect the passing of traits affect the passing of traits to offspring?to offspring?
Standard:Standard:S7L3b. Compare and contrast S7L3b. Compare and contrast that organisms reproduce that organisms reproduce asexually and sexually (bacteria, asexually and sexually (bacteria, protists, fungi, plants and protists, fungi, plants and animals)animals)
Previously, you learned that cells make more cells through the process of …
You learned that sex cells are created in a process called…
You learned that adults produce offspring with the help of which system…
Mitosis
Meiosis
Reproductive System
ReproductionReproduction
For this unit, we For this unit, we will look at will look at
reproduction with reproduction with a more specific a more specific
focus on the focus on the passing of traits.passing of traits.
Asexual
ReproductionReproduction
Sexual
vs.
Use the Types of Use the Types of Reproduction Chart to take Reproduction Chart to take
NotesNotes
AsexualAsexualReproductionReproduction
Most unicellular organisms, and a few multicellular organisms use cell division to reproduce in a process called asexual reproduction.
A parent organism produces one or more new organisms that are identical to the parent and live independently of the parent
Asexual Asexual ReproductionReproduction
Asexual Asexual ReproductionReproduction
The organism that produces the new organism or organism is the parent
Each new organism is an offspring
The offspring produced by asexual reproduction are genetically identical to the parent.
Asexual Asexual ReproductionReproduction
Binary Fission is a form of asexual reproduction that
occurs in cells that do not
contain a nucleus (Prokaryotes)
Asexual Asexual ReproductionReproduction
Asexual Asexual ReproductionReproduction
Other Examples of Other Examples of Asexual Asexual
ReproductionReproduction
Sexual Sexual ReproductionReproduction
Type of reproduction in which two parent cells
(male and female reproductive cells)
combine to form offspring with genetic material from
both cells.
Sexual Sexual ReproductionReproduction
Heredity is the passing of Genes from parents to offspring.
A Eukaryotic cell has a Nucleus that contains
genetic material.
A Chromosome is the structure that holds the genetic material
(DNA).
DNA is the genetic material that provides instructions for all the
body’s functions.
A Gene is a section of DNA that provides
instructions for specific traits.
Each species of living things has a characteristic number of chromosomes.
Humans have 23 pairs, for a total of 46 chromosomes.
Sexual ReproductionSexual Reproduction
Recall from our previous unit the cell process called Meiosis.
What was the purpose of Meiosis?
What was our general description of Meiosis?
Make Sex Cells
One Cell Makes Four Cells
Sexual Sexual ReproductionReproduction
The process of Meiosis creates sex cells (sperm and egg in humans) that contain half the genetic material (half the 46 chromosomes)
During sexual reproduction, sex cells are combined to form unique offspring.
46Chromosomes
23Chromosomes
Sexual Sexual ReproductionReproduction
Sexual Sexual ReproductionReproduction
Sexual Sexual ReproductionReproduction
ReproductionReproductionhttp://www.youtube.com/watch?v=jk2RJm5RBEk
Asexual & Asexual & Sexual Sexual
ReproductiReproduction Sorting on Sorting
ActivityActivity
Investigating Investigating Reproductive Reproductive
Strategies ActivityStrategies Activity
Comparing Comparing Asexual & Asexual &
Sexual Sexual ReproductioReproductio
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