Reproduction What’s the difference in these two forms of reproduction?

Essential 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)

 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 Reproduction

For this unit, we will look at reproduction with a more specific focus on the passing of traits.

Asexual Reproduction Sexual vs.

Use the Types of Reproduction Chart to take Notes

AsexualReproduction

 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 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.

Asexual Reproduction

Binary Fission is a form of asexual reproduction that occurs in cells that do not contain a nucleus (Prokaryotes) Asexual Reproduction

Other Examples of Asexual Reproduction

Sexual Reproduction

Type of reproduction in which two parent cells (male and female reproductive cells) combine to form offspring with genetic material from both cells. Sexual Reproduction

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 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 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. 46 Chromosomes 23 Chromosomes Sexual Reproduction

Reproduction watch?v=jk2RJm5RBEk

Asexual & Sexual Reproduction Sorting Activity

Investigating Reproductive Strategies Activity

Comparing Asexual & Sexual Reproduction