Phases of Meiosis Chapter 10.2.

Slides:

Advertisements

Similar presentations

Meiosis Pgs Modified by Liz LaRosa 2011.

Advertisements

Making gametes for reproduction

11-4 Meiosis Pg. 275.

Chromosome Number - Is how many chromosomes a cell has

Mitosis Cell division/ cell production What kind of cells?

Do Now!! o Now What is the purpose of Mitosis?

Meiosis Notes CP Biology Ms. Morrison. Chromosome Number  Every organism gets half of chromosomes from one parent and half from the other parent  Two.

Oh! MEIOSIS Cell division in which one DIPLOID CELL produces four HAPLOID CELLS called sex cells or gametes Meiosis is reduction division; the cells produced.

Meiosis. What is Meiosis? Quick Review: What organelle is responsible for holding the cell’s genetic code? Meiosis is the process of creating 4 haploid.

Meiosis  Human body cells have 46 chromosomes Meiosis (sexual reproduction) - General Overview Sexual Reproduction and Genetics  Each parent contributes.

The Cell Cycle & Cell Division

Meiosis.  Meiosis is a special type of cell division that occurs only in reproductive organs. Meiosis makes reproductive cells called gametes (egg or.

Process that makes gametes Gametes are sex cells Examples: Egg and Sperm The other type of process we learned about was…. Mitosis it is a process that.

Reduction of Chromosomes. Mitosis Cell duplication (or reproduction) where one cell creates two genetically identical daughter cells Cellular reproduction,

MEIOSIS By Diana Bivens. Meiosis vs. Mitosis Mitosis: period of nuclear division in which two daughter cells are formed, each identical to the parent.

Cell Reproduction Meiosis aka Cell Division. Meiosis Cell division where one diploid cell (2n) produces four haploid (n) cells called sex cells or gametes.

 Human body cells have 46 chromosomes Meiosis Sexual Reproduction and Genetics  Each parent contributes 23 chromosomes Section 1  Homologous chromosomes—one.

Meiosis Chapter 10.

 Human body cells have 46 chromosomes Meiosis Sexual Reproduction and Genetics  Each parent contributes 23 chromosomes Section 1  Homologous chromosomes—one.

Federoff. Interphase  Chromosomes Duplicate  Prepares to Divide.

MEIOSIS Chapter Meiosis  This kind of cell division produces gametes containing half the number of chromosomes as a parent’s body cell  Meiosis.

Meiosis. Now that you know all about DNA…. How is DNA passed from parent to offspring? How is DNA passed from parent to offspring? There are two main.

Meiosis Unit 4.

Mitosis vs. Meiosis Objective 1.

Mitosis and Meiosis Books

Meiosis Modified by Liz LaRosa 2011.

2 divisions of the nucleus

11-4 Meiosis Pg. 275.

Cell Division: Meiosis

Unit 5: Cell Growth and Development 5.5 Meiosis

Mitosis and Meiosis.

Meiosis- The Formation of Sex Cells

Meiosis Modified by Liz LaRosa 2011.

Chromosomes and Meiosis

Announcements Take out Meiosis WS to be checked from last class if you did not get it stamped Today: Meiosis Review.

Meiosis Pgs Modified by Liz LaRosa 2011.

EQ: What happens during the process of meiosis?

Meiosis Sexual Reproduction.

Chromosomes and Chromosome Number

Providing Genetic Variation

Creating Genetic Diversity

Cell Reproduction.

Meiosis Modified by Liz LaRosa 2011.

Meiosis Modified by Liz LaRosa 2011.

MT: Sexual Reproduction

Meiosis I results in 2 haploid daughter cells

Mitosis Cell Division in Non Sex Cells

Meiosis Modified by Liz LaRosa 2011.

Unit 6: Cell Growth and Development 6.5 Meiosis

Mitosis and Meiosis.

Meiosis Chapter 10 Section 1.

Do Now What is the purpose of Mitosis?

Meiosis; Chapter 6.2 I. Purpose of meiosis is to create a gamete that is haploid (half the normal number of chromosomes), from a diploid cell (complete.

Meiosis Phases.

Mitosis and Meiosis.

Meiosis (How It Happens)

Meiosis SC Standard B4.5- The student will be able to summarize the characteristics of the phases of Meiosis I and II.

Meiosis Modified by Liz LaRosa 2011 *.

Terms Homologous –describes the matching chromosome from each parent (one male / one female) Diploid – term used to describe a cell that contains both.

Meiosis Division of Sex Cells.

Presentation transcript:

Phases of Meiosis Chapter 10.2

Interphase Same as interphase of mitosis Cell replicates its chromosomes Grows in size

Prophase I Chromosomes visible Nucleus disappears Homologous chromosomes pair together to form a tetrad Crossing over occurs Exchange of genetic material on homologous chromosomes Results in new combinations of alleles on chromosomes

Metaphase I Chromosomes attached to spindle fibers at the centromeres Homologous chromosomes line up across from each other at the middle of the cell

Anaphase I Homologous chromosomes separate and are pulled to opposite sides of the cell

Telophase I Two daughter cells are formed Chromosome uncoil Nucleus reforms

Prophase II Same as prophase of mitosis Nucleus disappears Chromosomes become visible Chromosomes still made up of two sister chromatids

Metaphase II Chromosomes line up at the middle of the cell

Anaphase II Sister chromatids separate and are pulled to opposite sides of the cell by the spindle fibers

Telophase II Nuclei reform Cell divides to produce four gamete cells that contain a haploid number of chromosomes

Name the Phase: Review 1

Review 2

Review 3

Review 4

Review 5

Review 6

Review 7: Mitosis, Meiosis or Both?

Review 8: Mitosis, Meiosis or Both?

Review 9: Mitosis, Meiosis or Both?

Review 10: Meiosis, Mitosis or Both