MEIOSIS 9 Biology.

Slides:

Advertisements

Similar presentations

30 Seconds 10 Time’s Up! 3 Minutes 1 Minute 4 Minutes Minutes

Advertisements

Section 11-4: Meiosis Where are genes located? Chromosomes in the nucleus Basic principles of genetics require 2 things: Each organism must receive a.

Mitosis or Meiosis Practice You may write Mi for Mitosis and Me for Meiosis.

Mitosis Meiosis Chromosomes Phases Miscellaneous.

Answer the following question in a complete sentence.

Meiosis Division of Sex Cells. Meiosis  A process of reduction division in which the number of chromosomes per cell is cut in half through the separation.

DO NOW… The diagram below provides information about a carrot cell.

Meiosis 10/29/09. What can you tell me about Mitosis?

Content Standard 9 Identify the process of chromosome reduction in the production of sperm and egg cells during meiosis.

What are we learning today?

Meiosis Cell Division Set up Cornell. A. What is Meiosis? All organisms that reproduce sexually undergo meiosis. Meiosis is cell division of sex cells.

Meiosis Biology.

Meiosis Cell division in sex cells that produces gametes containing half the number of chromosomes as a parent’s body cells (somatic cells)

Thursday, December 10, 2015 Day 2 Science Starters Sheet 1. Please have these Items on your desk. Note book Science Starter: Two Vocabulary words: 1.Anaphase.

DIPLOID Diploid = 2(n) In humans: n=23 chromosomes 2(n)= 46 total chromosomes 2 sets of each chromosomes Somatic cells are diploid Body Cells (nerve, muscle,

Cell Reproduction Meiosis Notes. Why does meiosis occur?

1 Meiosis. 2 To help you understand about DNA…. How is DNA passed from parent to offspring? There are two main ways that DNA is passed from parent to.

Meiosis Division of sex cells. Meiosis Cell Division to make 4 new, genetically different sex cells.

Meiosis Cell division – ‘ reduction division’ Production of sex cells – gametes.

Meiosis Introduction Unit 08. Chromosomes  What is a chromosome?  A piece of coiled DNA  How many chromosomes do human cells have?  46 (in non-sex.

Meiosis – the formation of sex cells

Answer the following question in a complete sentence.

Meiosis Division of Sex Cells.

Mitosis and Meiosis Review

Mitosis = Red Meiosis = Green

Gametes (Sex Cells) Not all cells in the organism reproduce through mitosis If the organism reproduces sexually, then it needs special cells Gametes =

Intro to Meiosis.

Like Mitosis, but half as good!

Quick Review of Mitosis: -Mitosis is the division of the nucleus

Quick Review of Mitosis: -Mitosis is the division of the nucleus

You have body cells and gametes.

Mitosis and meiosis.

Meiosis Division of Gametes.

Concept: Compare the Process of Mitosis and Meiosis

To be successful today…

Anaphase II Telophase II

Quick Review of Mitosis: -Mitosis is the division of the nucleus

Mitosis vs. Meiosis.

Meiosis Division of Sex Cells.

Nuclear division of sex cells

Quick Review of Mitosis: -Mitosis is the division of the nucleus

Meiosis Division of Sex Cells.

Terms Haploid: (1n) one set of chromosomes

The formation of gametes (sex cells)

How many cells do you end up with in Mitosis?

Mitosis and Meiosis Year 10 Biology.

Topic: Cellular Reproduction Aim: How does meiosis occur?

Meiosis The process of cell division in which male and female gametes are produced in order for sexual reproduction to take place.

THE FORMATION OF SEX CELLS

Meiosis Why We Are Who We Are.

Mitosis vs. Meiosis.

Meiosis Division of gametes.

Meiosis Why We Are Who We Are.

Meiosis Cell division that makes 4 genetically different daughter cells Occurs in sex cells (sperm & eggs) called gametes Chromosome Number per cell.

Mitosis and meiosis.

Mitosis and Meiosis.

Nuclear division of sex cells

Meiosis (How It Happens)

Meiosis Division of Sex Cells.

Mitosis vs. Meiosis.

Meiosis Division of Sex Cells.

Chapter 8 Meiosis.

Presentation transcript:

MEIOSIS 9 Biology

Meiosis Gamete cell division Reduction division: Only occurs in gametes, or sex cells Ex. Egg and sperm Reduction division: Reduces number of chromosomes by half, resulting in haploid cells

Gamete cells:

Meiosis Meiosis has 2 phases: Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II, Telophase II Phases are the same as mitosis, but the cells divide twice Result= half the chromosomes- haploid

Meiosis Animation https://www.learningliftoff.com/wp-content/uploads/2014/01/HS-Science-Meiosis-402745_VHS_BIO_03_30_105_ANI_meiosisI_II.swf

Meiosis and Mitosis Meiosis Mitosis Only in gamete cells Results in half the number of chromosomes Has 2 phases Results in 4 haploid cells Happens in somatic (body) cells Hair, skin, lung, liver Retains original number of chromosomes Has 1 phase Results in 1 daughter cell with chromosome number identical to parent

Compare: