AP Lab 3 Mitosis and Meiosis

Slides:

Advertisements

Similar presentations

Sexual Division of Cells

Advertisements

Number of chromatids in a diploid cell during G2

Meiosis MEIOSIS and sexual life cycles.

Cells go through two rounds of division in meiosis.

Replication - Mitosis & Meiosis

The Birds and the Bees: Meiosis Chapter 10. Meiosis exists for two major reasons: To divide the number of chromosomes To create genetic variability.

Interphase Cells: Are they in G1, S or G2?

Meiosis and Genetic Variation Review Sections 6.1, 6.2, and

Crossing Over in the Fungus “Sordaria” AP Biology Lab 3.

Lab 3: Mitosis & Meiosis.

How many stages of cell division do you see in this image?

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

CELL DIVISION Binary fission

CHROMOSOME NUMBER & GAMETE FORMATION. CHROMOSOME NUMBER  organisms that reproduce sexually have a diploid number (2N) of chromosomes in each cell of.

Slide 1 anther (where male gametes originate) ovules inside the ovary (where female gametes originate) Figure 10.2a Page 164.

Meiosis: I & II (don’t forget Interphase!...only ONCE) Meiosis I: PMAT (I) –Results in 2 haploid daughter cells…but the genetic material has recombined.

MITOSIS AND MEIOSIS QUICK REVIEW. WHICH KINDS OF CELLS ARE DIPLOID? Somatic or Body Cells.

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

BSC 2010L. Prokaryotic Cells  Divide by binary fission Produces “clones” Only have to worry about 1 circular chromosome Eukaryotic cells have many linear.

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

Chapter 10.2 What Meiosis Does AP Biology Fall 2010.

Cells go through two rounds of division in meiosis.

Review How many chromosomes do you have in each cell?

Mitosis and Meiosis BSC 1005L.

There is a Need for Cell Division

Asexual vs. sexual reproduction

You have body cells and gametes.

AP Biology Sordaria Lab Meiosis

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.

AP Biology Meiosis Part 1.

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Mechanisms of Evolution

Title: Biology 1/8/07 Objectives: Class Topics

Genetics of Inheritance

Meiosis and genetic variation

Comparing Mitosis and Meiosis

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Lab 3: Mitosis & Meiosis.

Cells go through two rounds of division in meiosis.

Just Meiosis 2018.

Cells go through two rounds of division in meiosis.

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.

AP Biology Meiosis Part 1.

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Cell Cycle in Onion Root Tips

Section 3-1 Meiosis.

AP Biology Meiosis Part 1.

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.

The formation of gametes

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

Meiosis Process Biology Chapter 6.2.

Cells go through two rounds of division in meiosis.

Cells go through two rounds of division in meiosis.

AP Lab 3 Mitosis and Meiosis

Presentation transcript:

AP Lab 3 Mitosis and Meiosis

Review: Mitosis and the cell cycle Phases G1, S, G2 Parts of microscope and troubleshooting!

Lab Tips! Complete 3A on your own. For 3A2, work in partnerships. One person calls out phases, the other records in Table 3.1 COUNT A MINIMUM OF 200 CELLS! Onion Root Tips: look at the apical meristem!

http://www.lima.ohio-state.edu/biology/images/roottip.jpg

http://www.lima.ohio-state.edu/biology/images/apical_meristem.jpg

Quick Review: What is the goal of meiosis? What are the phases and actions in the phases? What is crossing over? What is the result of crossing over? http://www.ekcsk12.org/science/aplabreview/mitosismeiosislab.html

each chromosome duplicating during interphase germ cell germ cell each chromosome duplicating during interphase n MEIOSIS I separation of homologues MEIOSIS II separation of sister chromatids gametes gametes 2n diploid number restored at fertilization zygote Fig. 10.11, p. 172

Sordaria ascospores Sordaria ascospore images from http://www.ac-orleans-tours.fr/svt/theme4/sordaria/pcdefault.htm

Debrief: Any questions on main concepts? Mitosis Meiosis Gametogenesis

Mitosis Findings: Which phase dominated? Any questions on analysis questions?

Meiosis Findings: Any questions on analysis questions?