I can compare and contrast the two rounds of division in meiosis.

Slides:

Advertisements

Similar presentations

Meiosis is a special form of cell division.

Advertisements

Set up Cornell Notes on pg. 77 Topic: 6.2 Process of Meiosis

You have body cells and gametes.

Chromosomes and Meiosis Unit

You have body cells and gametes.

Chapter 10 Meiosis Textbook pages

Mitosis is _____________________________________

Cells go through two rounds of division in meiosis.

KEY CONCEPT DNA structure is the same in all organisms.

Process of Meiosis Section 6.2. Objectives SWBAT compare and contrast the two rounds of division in meiosis. SWBAT describe how haploid cells develop.

Meiosis and Genetic Variation Review Sections 6.1, 6.2, and

EQ: What are the major differences between Meiosis and Mitosis?

6.1 Chromosomes and Meiosis KEY CONCEPT Gametes have half the number of chromosomes that body cells have.

You have body cells and gametes.

You have body cells and gametes.

KEY CONCEPT – Section 6.1 Gametes have half the number of chromosomes that body cells have.

Interphase Cytokinesis Telophase Anaphase Metaphase Prophase What looks similar between mitosis and meiosis? What looks different?

 AKA “vegetative propagation”  Occurs via Mitosis or Binary Fission  Makes “CLONES” (genetically identical offspring)  Natural Examples:  Runners,

You have body cells and gametes.

Reduction-Division Genetic Recombination 1. cell division GAMETES, HALF CHROMOSOMES,  The form of cell division by which GAMETES, with HALF the number.

5c. Meiosis Chapter 6.1 & 6.2.

6.1 Chromosomes and Meiosis

In your notes: Create a Venn Diagram to Compare and Contrast Mitosis and Meiosis Use your notes and/or your book and/or your brain, or all three!!! You.

Cells go through two rounds of division in meiosis.

Meiosis Process by which GAMETES are formed (sex cells)

Cell Division: Meiosis

Vocabulary Words for section 6.2 These words are highlighted in red.

Day one of Meiosis.

Biology Unit Three D – Asexual Reproduction and Cell Functions

You have body cells and gametes.

You have body cells and gametes.

Meiosis: Cell division

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

The student is expected to: 6A identify components of DNA, and describe how information for specifying the traits of an organism is carried in the DNA.

Cells go through two rounds of division in meiosis.

Meiosis & Mendel Chapter 6

Sexual reproduction How many chromosomes do we have in body cells?

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Unit 4: Genetics B-4.5 Summarize the characteristics of the phases of meiosis I and meiosis II.

Take out all work due today: Meiosis Flow Map

Section 6-2 “Meiosis” Question: How can a male (diploid; 46 chromosomes) and a female (diploid; 46 chromosomes) produce a child with 46 chromosomes? Answer:

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Cell Division Meiosis.

Cells go through two rounds of division in meiosis.

Meiosis I and Meiosis II each have four phases, PMAT.

Haploid cells develop into mature gametes.

11.4 Meiosis KEY CONCEPT During meiosis, diploid cells undergo two cell divisions that result in haploid cells.

Mitosis vs. Meiosis.

Chromosomes & meiosis.

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

1.) What are homologous chromosome pairs?

Genes, Alleles, and meiosis

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Mitosis vs. Meiosis.

Cells go through two rounds of division in meiosis.

KEY CONCEPT During meiosis, sex cells are produced.

6.1 Chromosomes & Meiosis (Cell Division Part 2)

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Creating gametes (sex cells)

Meiosis Process Biology Chapter 6.2.

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Presentation transcript:

KEY CONCEPT During meiosis, diploid cells undergo two cell divisions that result in haploid cells.

I can compare and contrast the two rounds of division in meiosis. I can describe how haploid cells develop into mature gametes.

Cells go through two rounds of division in meiosis. Meiosis reduces chromosome number and creates genetic diversity.

Pairs of homologous chromosomes separate in meiosis I. Meiosis I and meiosis II each have four phases, similar to those in mitosis. Pairs of homologous chromosomes separate in meiosis I. Homologous chromosomes are similar but not identical. Sister chromatids divide in meiosis II. Sister chromatids are copies of the same chromosome. homologous chromosomes sister chromatids sister chromatids

Meiosis I occurs after DNA has been replicated. Meiosis I divides homologous chromosomes in four phases.

Meiosis II divides sister chromatids in four phases. DNA is not replicated between meiosis I and meiosis II.

Meiosis differs from mitosis in significant ways. Meiosis has two cell divisions while mitosis has one. In mitosis, homologous chromosomes never pair up. Meiosis results in haploid cells; mitosis results in diploid cells.

Haploid cells develop into mature gametes. Gametogenesis is the production of gametes. Gametogenesis differs between females and males. Sperm become streamlined and motile. Sperm primarily contribute DNA to an embryo. Eggs contribute DNA, cytoplasm, and organelles to an embryo. During meiosis, the egg gets most of the contents; the other cells form polar bodies.

Which of the following statements is true of homologous chromosomes? a. They are exact copies. b. They contain the same genes. c. They divide during meiosis II. d. They connect to each other.

Which phrase best describes meiosis I? a. duplication of paired chromosomes b. fusion of sister chromatids c. division of homologous chromosomes d. creation of two diploid cells

What happens to sister chromatids in meiosis II? a. They duplicate. b. They are divided. c. They remain together. d. They do not take part.

Gametogenesis is the term for a. the production of gametes. b. the fertilization of eggs. c. the development of polar bodies. d. the movement of sperm.

What does an egg contribute to the embryo that a sperm does not contribute? a. polar bodies b. organelles c. DNA d. germ cells