Reproduction Whats the difference in these two forms

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: S 7 L 3 b. Compare and contrast that organisms reproduce asexually and sexually (bacteria, protists, fungi, plants and animals)

Reproduction § Previously, you learned that cells make more cells through the process of … Mitosis § You learned that sex cells are created in a process called… Meiosis § You learned that adults produce offspring with the help of which system… Reproductive System

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

Reproduction Asexual vs. Sexual

Use the Types of Reproduction Chart to take Notes

Asexual Reproduction

Asexual 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

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

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

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.

A Eukaryotic cell has a Nucleus that contains genetic material. A is the A Chromosome Gene is a section holds ofstructure DNA that provides the genetic material instructions for (DNA). specific traits. Heredity is the passing of Genes from parents to DNA is the genetic material that provides offspring. instructions for all the body’s functions.

Sexual Reproduction § § 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? Make Sex Cells § What was our general description of Meiosis? 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

Sexual Reproduction

Reproduction http: //www. youtube. com/ watch? v=jk 2 RJm 5 RBEk

Asexual & Sexual Reproduction Sorting Activity

Investigating Reproductive Strategies Activity

Summarizer: Comparing Asexual & Sexual Reproduction