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Sexual Reproduction Ch 38.1 Guide Ch 38.2 Development
I1.Sexual/Asexual Reproduction Asexual Exact copy Mitosis One parent Constant conditions Sexual Genetic variety Meiosis = eggs & sperm Two parents Changing conditions
Asexual examples: Hydra Budding of polyps Regen- eration Of cut pieces
Amoeba asexual division 2 nd amoeba Nucleus
Asexual Reproduction: Runners in strawberries Spores in Puffball Mushrooms
Joey develops in a Pouch
Flowering Plants Sexual Reproduction Dry Pollen For sperm
Ferns Sexual & Asexual Reproduction Sexual & Asexual
Comparison of Egg & Sperm Egg 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
Reproduction Hormones HormoneProduced byFunction TestosteroneTesticlesMale sex traits FSHPituitaryStimulates LH LHPituitaryRelease of egg EstrogenOvariesFemale sex traits ProgesteroneCorpus luteumMaintains Uterus lining
End Show Slide 1 of 41 Copyright Pearson Prentice Hall 39-3 The Reproductive System.
Asexual Reproduction Asexual reproduction involves only one parent who passes on the genetic information to their offspring. This sharing of genetic information.
Reproduction in living organisms (other organisms … not you) (that topic is covered in health class)
Meiosis and Reproduction. Types of Reproduction Asexual Reproduction – production of offspring that requires only one parent; all the genetic materials.
A special type of cell division. Only occurs in reproductive organs Reduces the number of chromosomes in the nucleus -Reduction division.
Fertilisation. The male reproductive system The female reproductive system.
Types of Reproduction. Types of Reproduction Asexual Asexual reproduction occurs when a new organism is produced from one parent. The genetic material.
Notes E 4.3 Meiosis is a special form of cell division.
Purposes of in Humans Cell DivisionDivision. Purpose: Cell division for reproduction creates offspring with traits from both mother and father. Called:
Cell Division page 95 Define Cell Cycle--- the regular sequence of growth and division happens again and again---cycle allows you to grow and repair your.
I.Sexual Reproduction --two parents combine. 1. The sex cell from the male parent is sperm. a. Sperm head is almost all nucleus (genetic info) 2. The.
Plant Reproduction. Two Forms of Plant Reproduction Sexual Reproduction Asexual Reproduction Meiosis + Fertilization Mitosis + Vegetative Propagation.
Chapter 13 Meiosis and Sexual Life Cycles. Inheritance/Heredity When traits are passed down from one generation to the next, we say they are inherited.
Cells - The Basic Unit of Life The characteristics of an organism in terms of a combination of inherited traits and reproduction.
SEXUAL REPRODUCTION Sex cells formed by meiosis Requires 2 parents Offspring not identical The process that results in the formation of gametes Sex cells,
Asexual Reproduction in Protists & Monerans AND Comparing Sexual & Asexual Reproduction.
Aim: What are the major changes in the nucleus during cell division? Part 3 of Sheena’s story Fill in Class Notes on Mitosis During presentation.
Reproduction The cells of all organisms contain a molecule called deoxyribonucleic acid (DNA). controls all cell activities. holds all the genetic information.
DNA Protein Synthesis Replication. DNA carries a code for proteins.
Prokaryote ◦ No nucleus ◦ Unicellular ◦ Example: Bacteria Eukaryote ◦ Nucleus ◦ Complex organelles ◦ Uni or multicellular ◦ Example: Us!
Heredity Asexual & Sexual Reproduction RNA & DNA Mitosis & Meiosis Genetics.
Genes are on chromosome pairs Inheritance happens through o Sexual reproduction: a cell containing genetic information from the mother and a cell containing.
Sex Cells and Fertilisation Sexual Reproduction. Copy the following definition: Reproduction is the method by which the members of a species produce offspring.
Mitosis vs. Meiosis. Meiosis Mitosis Based on the diagram, The difference between mitosis and meiosis is that mitosis produces two identical daughter.
Aim: How does asexual reproduction result in offspring that are identical to the parent? Major Understanding In asexually reproducing organisms, all the.
Write everything that is underlined Section 6-1 Chromosomes & Meiosis Section 6-1 Chromosomes & Meiosis.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece.
Meiosis is a process of cell division that creates sex cells (gametes). The sex cells are the ones that combine to form a new organism. Meiosis is a type.
Anticipation Guide Observe the pictures on the next slide and in front of you….. Put the pictures in the correct order….or the order you think they should.
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