Ch 38.1 Guide Ch 38.2 Development

Slides:

Advertisements

Similar presentations

39-3 The Reproductive System

Advertisements

Sexual Reproduction Chapter 38.

Dr Adrian Mascia REPRODUCTION IN HUMANS. Human Chromosomes.

Meiosis Or reduction division.. What is the Difference between Mitosis and Meiosis.

Methods of Asexual Reproduction This is what it would look like if humans reproduced by fragmentation!

LO: SWBAT explain how gametes are formed.

MEIOSIS: The Production of Sex Cells *Click for Animation*

7 Reproduction. Reproduction: making offspring Reproduction according to embedded genetic instructions is a characteristic of living organisms. Two types.

End Show 39-3 The Reproductive System Slide 1 of 41 Warm-Up #18 Answer question #1 on study guide page 52 under Chp 39-3 Reproductive System HW. Copyright.

Sexual Reproduction. Key Point #1 Sexual reproduction is the process in which organisms produce gametes that combine during fertilization to create a.

Topic: Reproduction Aim: How is the human body adapted for reproduction?

What to Study Chp 3. Cell containing only one chromosome from each homologous pair. Haploid.

Mitosis vs. Meiosis. What is the difference Mitosis is asexual reproduction. Does not produce a new organism. Mitosis is asexual reproduction. Does not.

Reproduction Can you guess whether the following organisms reproduce using sexual or asexual reproduction?

Mitosis & Meiosis Mitosis Meiosis Where does it occur?

Fertilisation In Mammals  Sperm are produced in the testes  Eggs are produced in the ovaries  Fertilisation occurs when a sperm swims up the oviduct.

You have body cells and gametes.

Notes: Types of Reproduction ***Key Idea: Genetic information is passed from parents to offspring through CHROMOSOMES. Remember that chromosomes are DNA.

SEXUAL AND ASEXUAL REPRODUCTION. A characteristic of living things is that they produce new organisms through the process of reproduction.

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

1 1 Asexual Reproduction Requires only one parent New organism is identical to the parent New organism will have DNA identical to the parent.

5.1 The Cell Cycle KEY CONCEPT Cells come from preexisting cells Cell Reproduction.

AIM: What is the difference between the chromosome number in our body cells and gametes? DN: What are gametes? How many chromosomes are in the gametes.

Reproduction Notes. I.Reproduction A. – offspring arise from a parent and inherit all of the genes of that parent 1. Offspring have of the same chromosomes.

The process of making new individuals (offspring) from existing individuals (parents).

A comparison…. Any form of reproduction in which the offspring are genetically identical to the parent A single parent grows a clone or copy of itself.

Today’s Objective(s): I will be able to explain the different types of Reproduction. Do Now: List 2 things you remember about Reproduction.

Sexual Reproduction.

Reproduction (to make sure a species can continue)

Mitosis and Meiosis Review

LO: SWBAT explain how gametes are formed.

Sexual Reproduction.

iGCSE revision powerpoint 4

Asexual & Sexual Reproduction

Sexual vs. Asexual Reproductions

Methods of Asexual Reproduction

Reproduction in the Kingdoms

You have body cells and gametes.

You have body cells and gametes.

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

Meiosis Fall 2017.

Mitosis vs. Meiosis.

You have body cells and gametes.

You have body cells and gametes.

You have body cells and gametes.

Sexual Reproduction Parents: 2 Offspring: different

3.2 Cell Division - Cell division can occur in two ways: through asexual reproduction and sexual reproduction. - In asexual reproduction, cell division.

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.

Asexual vs. Sexual Reproduction

Mitosis and Meiosis.

You have body cells and gametes.

Where does my DNA Come From?

You have body cells and gametes.

You have body cells and gametes.

You have body cells and gametes.

You have body cells and gametes.

You have body cells and gametes.

You have body cells and gametes.

Oct 24, 2016 Asexual Reproduction.

You have body cells and gametes.

Reproduction in the Kingdoms

Asexual and Sexual Reproduction

You have body cells and gametes.

You have body cells and gametes.

Chromosomes and Meiosis

You have body cells and gametes.

Presentation transcript:

Ch 38.1 Guide Ch 38.2 Development Sexual Reproduction Ch 38.1 Guide Ch 38.2 Development

I1.Sexual/Asexual Reproduction Exact copy Mitosis One parent Constant conditions Sexual Genetic variety Meiosis = eggs & sperm Two parents Changing conditions

Asexual examples: Hydra Regen-eration Of cut pieces Budding of polyps

Amoeba asexual division 2nd amoeba Nucleus

Asexual Reproduction: Runners in strawberries Spores in Puffball Mushrooms

Sexual Reproduction

“Joey” develops in a Pouch

Flowering Plants Sexual Reproduction Dry Pollen For sperm

Ferns Sexual & Asexual Reproduction

Comparison of Egg & Sperm Round Floats Food reserves One Ovaries 1N Sperm Oval Flagella No food reserves Many secrete enzyme to penetrate egg membrane Testicles 1N

Meiosis in the Gonads Sperm Meiotic cell division Egg

Gonads make gametes! Testes make sperm

Chromosomes Sex Chromosome Y determines a Male

Gonads make gametes! Ovaries make eggs

Tubal ligation

Reproduction Hormones Produced by Function Testosterone Testicles Male sex traits FSH Pituitary Stimulates LH LH Release of egg Estrogen Ovaries Female sex traits Progesterone Corpus luteum Maintains Uterus lining

Menstrual Cycle