1. Aim Review of Reproduction and development

2. Types of Animal Reproduction
Asexual
( 1- parent-identical)
Sexual
(2-parents- leads to variety)

3. How do daughter cells compare in each processes?
Mitosis produces cells which are identical
Meiosis produce gametes which are genetically different
Asexual reproduction
Sexual reproduction

4. When does each occur? Asexual reproduction Tissue repair Growth
Mitosis
Meiosis
Asexual reproduction
Tissue repair
Growth
Production of sperm cells
Production of egg cells
(Crossover)

5. Cross-over (Sorting)
Process during meiosis (sperm and egg formed) where genes on chromosomes begin to switch causing
recombination of genes

6. Fertilization
During Fertilization the gametes unite to form the zygote
The zygote is also called the fertilized egg 23 + 23 46

7. Female Reproductive System1.
Gamete and hormone production occurs in the ovaries
Fertilization occurs in the Fallopian tube
Embryo develops in uterus 2. 3. 4. 5.

8. The Zygote 46 Cleavage Contains the full amount of chromosomes
The zygote then divides by mitosis to form a multi-cellular organism
Cleavage

9. Cleavage
Zygote begins to divide quickly in the fallopian tube in a process called cleavage

10. Zygote migrates down to uterus
The zygote then turns into an embryo
It then implants into the lining of the uterus where it develops

11. The Placenta It is the embryos organ of Respiration Nutrition
Excretion
Diffusion is process molecules move

12. Environmental Factors that negatively affect the embryo
Tobacco
Alcohol
Inadequate diet
Drugs
Infections (viruses)

13. The Zygote 46 Cleavage Contains the full amount of chromosomes
The zygote then divides by mitosis to form a multi-cellular organism
Cleavage

14. Early Development
Cells form into different major organs. Structures such as the heart, brain, lungs and kidneys begin to form
This process is called
Differentiation

15. Embryo
All major human organ systems are developed in the first three months of pregnancy

16. Embryonic growth
Growth of the embryo occurs for the next six months of the pregnancy

17. Two female hormones What structure above produces hormones? A
Estrogen- responsible for egg production and female characteristics such as mammary glands
Progesterone- responsible for development of the uterus
What structure above produces hormones? A

18. The menstrual cycle The menstrual controlled by the
Ovaries and the pituitary gland

19. Testes Testes Male organ that produces: Sperm (meiosis)
Testosterone (male reproductive hormone)
Testes

20. Vas deferens (Tube) The tube that goes from the testes to the penis
If you cut this tube the delivery of sperm will stop
Sperm is still produced because the testes are not destroyed
Vasectomy

21. Urethra The tube in the penis that is shared by both
the excretory and reproductive system