Animal Reproduction Organization Homeostasis. Review of Meiosis Let’s review meiosis with our human homologous chromosomes activity!

Slides:

Advertisements

Similar presentations

Reproduction and Development

Advertisements

Fertilization is the fusion of sperm and egg.

The Human Reproductive System

The Human Reproductive System

Human Reproduction Chapter 17.1 Page

3.6.2 Sexual Reproduction in the Human – Structures and Hormones Follow-Me – iQuiz.

Mrs. DeLillo Living Environment

The Male Reproductive System

Passing information on to the next generation…. » Compared to many animals and other organisms where fertilization occurs outside of the organism, in.

Chapter 16: The reproductive system

The part of the brain that issues instructions to the pituitary gland is the 1.Hypothalamus 2.Cerebellum 3.Cerebrum 4.Brain stem.

The Reproductive system

Human Reproduction. Battle of the sexes!!! Are males & females all that different? Well…….…..YES and NO.

REPRODUCTIVE SYSTEM Reproductive system: carries out the process so organisms can produce new individuals of their own kind. It stores, nourishes, and.

The Reproductive System

Endocrine and Reproductive Systems Endocrine System Organs: pituitary gland, adrenal gland, thyroid gland, gonads Function: production of hormones and.

The Human Reproductive System. Meiosis and gamete formation take place in special reproductive organs called testes in males and ovaries in females.

6.6 Hormones, homeostasis and reproduction

The Reproductive System. The female reproductive system produces female gametes (eggs), provides a receptacle for male gametes (sperm), and provides structures.

Reproduction The Reproductive System Variation and Reproduction Hormones and puberty Male and female reproductive structures The Menstrual Cycle.

Question: Explain meiosis and contrast it with mitosis. Homework:

Human Reproductive System

Human Reproductive System. Function of the reproductive system 1.To carry on the species and reproduce 2.Male reproductive cell – sperm 3.Female reproductive.

The Reproductive System

Male Structure Male Structure Testes- Testes- Male gonads Male gonads Produce sperm Produce sperm 2, located in scrotum 2, located in scrotum Seminiferous.

 Meiosis in males is called spermatogenesis ◦ Sperm cells are produced in the 2 testis in the scrotum sac. 2n n Slide 5.

Human Reproductive System. Gametogenesis Occurs in the gonads (ovaries and testes) Meiosis that results in the production of gametes (haploid) from germ.

Human Reproduction and Development. Human Reproduction Structures  **The reproductive system is the only system that would not result in death of the.

Reproduction Challenge Put your names on your paper. Read each question and discuss it quietly with your partners. You will have about 30 seconds per.

Menstrual Cycle, Spermatogenesis and Fertilzation

Meiosis Mitosis Asexual Reproduction Sexual Reproduction.

Male Reproductive System

Reproductive Systems: Male and Female. Male Testicle: Produces sperm and testosterone (puberty) Penis: Allows for exit of urine and semen Scrotum: Holds.

Reproductive System Sexual Reproduction ► Involves the production of eggs by the female and sperm by the male ► Eggs and sperm contain half (haploid)

You have body cells and gametes.

Lesson 1: Reproductive Systems. Male reproductive system.

Human Reproduction.

Aim: How are humans adapted for reproduction?

THE REPRODUCTIVE SYSTEM. INTRODUCTION TO THE REPRODUCTIVE SYSTEM  The major function of the reproductive system is to ensure survival of the species.

Animal Reproduction Chapter 46.

Last person standing…….

Evolution and Heredity Activity 5.1 Evolution and Heredity Activity 5.1.

Organs Hormonal Control

REPRODUCTION Human Reproductive Systems. Human Reproduction and Development Takes place internally Depends on the endocrine system (hormones), nervous.

REPRODUCTIVE SYSTEM. Female Organs/structures Ovaries Uterus Fallopian tubes (oviduct) Vagina Cervix.

 To pass on heritable traits (through DNA recombination) to further generations.  The formation of gametes (sperm or egg).  Delivery of sperm to egg.

34.1 Reproductive Anatomy KEY CONCEPT Female and male reproductive organs fully develop during puberty.

34.1 Reproductive Anatomy KEY CONCEPT Female and male reproductive organs fully develop during puberty.

HUMAN REPRODUCTION AND DEVELOPMENT Handout #22. The Male Reproductive System- Sperm production occurs in the ______ that is enclosed by the scrotum. This.

Lesson Overview Lesson Overview The Reproductive System Lesson Overview 34.3 The Reproductive System.

Reproductive System. Male Reproductive System Bladder.

 Forms new individuals  Species survival  9-15 yrs old  Hypothalamus → pituitary → FSH and LH FSH: follicle-stimulating hormone LH: luteinizing hormone.

Sexual Reproduction A. External Fertilization 2. Large number of eggs and sperm released 1. Egg fertilized outside female body I. Internal Vs. External.

WHAT YOUR DOCTOR ISN’T TELLING YOU ABOUT YOUR DNA 1. What gene did doctors accidentally identify in the baby? (paragraph 1) 2. What decision was made about.

Human Reproductive System

Topic 2: Human Reproductive System. Objectives… Students will be able to: Identify and explain the structure and function of the male and female reproductive.

Do Now… page 10 1.Use the following words in a sentence or two: a)Hormone / target cells / receptor / shape 2.What are the main male and female reproductive.

Human Reproductive System Male and Female Anatomy and Physiology.

Human Reproduction. Reproduction – is the formation of new individuals.  The reproductive system produces, stores, and releases specialized sex cells.

Human Reproduction.

Reproductive System Notes see transparancy

Topic: Human Reproductive System

The great variety of possible gene combinations in a

Male Reproductive Organs and Ducts

Aim Review of Reproduction and development

The Endocrine and Reproductive systems

Determining Sex In mammals, sex is determined early in development

Presentation transcript:

Animal Reproduction Organization Homeostasis

Review of Meiosis Let’s review meiosis with our human homologous chromosomes activity!

How is meiosis different than mitosis? What did we learn from our starter activity?

Karyotyping Organizes autosomes and sex chromosomes. Can be used to look for chromosomal mutations and sex.

Nondisjunction Chromosomes fail to segregate properly during meiosis; leading to aneuploidy.

Sex chromosomes Presence of a Y chromosome causes formation of testis during development; this allows for male characteristics. XX – female XY – male

Meiosis in Sperm and Egg

Female Reproductive System Ovaries: Site of meiosis and egg production Fallopian Tubes: Site of fertilization Uterus: Site of embryonic develoment

Male Reproductive System Testis & epididymis: sperm production & storage Glands: add fluids to sperm so they can be motile Vas deferens: allows sperm to travel from testis to urethra Urethra: allows both sperm and urine to exit the body

Hormones Control Reproduction The brain initiates the production of gametes and sex hormones. LH & FSH interact with different targets: Male Target: Testis Female Target: Ovaries & Uterus

Targets in Males FSH: Activates meiosis in testis LH: Activates production of testosterone What impacts might taking testosterone steroids have on feedback?

Targets in Females Spike in LH & FSH Cause ovulation (release of egg from ovary) Cause drop in estrogen & rise in progesterone. How would taking progesterone impact the female reproductive cycle?

Fertilization How does the structure of an ovum prevent double fertilization?

Development Identify each stage of development. When does differentiation occur?

Differentiation What are the fates of cells in the endoderm, ectoderm, mesoderm?

Embryonic development

Gene Regulation Genes must be turned on and off rapidly during embryonic development. What do transcription factors do to regulate protein synthesis? What does RNAi do to regulate protein synthesis?