Title: Asexual
1Reproduction
Whats the difference in these two forms of
reproduction?
2Essential Question How does sexual and asexual
reproduction affect the passing of traits to
offspring?
Standard S7L3b. Compare and contrast that
organisms reproduce asexually and sexually
(bacteria, protists, fungi, plants and animals)
3Reproduction
- 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
4For this unit, we will look at reproduction with
a more specific focus on the passing of traits.
5Asexual
Reproduction
vs.
Sexual
6Use the Types of Reproduction Chart to take Notes
7Asexual Reproduction
8Asexual Reproduction
- 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
9Asexual Reproduction
- 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.
10Asexual Reproduction
11Asexual Reproduction
- Binary Fission is a form of asexual reproduction
that occurs in cells that do not contain a
nucleus (Prokaryotes)
12Asexual Reproduction
13Other Examples of Asexual Reproduction
14Sexual Reproduction
15Sexual Reproduction
- Type of reproduction in which two parent cells
(male and female reproductive cells) combine to
form offspring with genetic material from both
cells.
16A Eukaryotic cell has a Nucleus that contains
genetic material.
A Chromosome is the structure that holds the
genetic material (DNA).
A Gene is a section of DNA that provides
instructions for specific traits.
DNA is the genetic material that provides
instructions for all the bodys functions.
17Sexual Reproduction
- Each species of living things has a
characteristic number of chromosomes. - Humans have 23 pairs, for a total of 46
chromosomes.
18Sexual 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
19Sexual Reproduction
- 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
20Sexual Reproduction
21Sexual Reproduction
22Reproduction
http//www.youtube.com/watch?vjk2RJm5RBEk
23Asexual Sexual Reproduction Sorting Activity
24Investigating Reproductive Strategies Activity
25Comparing Asexual Sexual Reproduction