BIOL 211 – CELLULAR AND ORGANISMAL BIOLOGY

Lecture Outline for April 25, 2005

 

Topic: animal reproduction

Chapter 9 sections 9.1, 9.2, 9.4

Figures used in lecture: 9.2, 9.13, 9.15, 9.17

Additional Resources:

                Asexual Reproduction – discusses plants, animals, and advantages of asexual reproduction

                Alternation of Generations

 

Sexual Reproduction

Define/explain: life cycles, alternation of generations

 

You should be able to;

1.  Explain the advantages of sexual reproduction vs asexual reproduction.

2.  Explain the advantages of asexual reproduction.

3.  Explain the purpose of sexual reproduction.

 

Animal Reproduction

Define/ explain: parthenogenesis, budding, fission, gametogenesis, oogenesis, spermatogenesis, external fertilization, internal fertilization, oviparous, vivparous

 

You should be able to:

1.  Describe asexual forms of reproduction seen in animals including, budding, fission, and parthenogenesis.

2.  Compare and contrast the processes of oogenesis and spermatogenesis.

3.  Compare external and internal methods of fertilization

4.  Compare oviparity and viviparity

 

Today’s Lecture (12-1-03)

 

Reproduction

Reproduction :

 

Sex :

 

Asexual reproduction :

 

Sexual reproduction :

 

Asexual Reproduction

Advantages:

               

Disadvantages:

                 

Means of asexual reproduction: 

1.  Budding

 

2.  Regeneration

 

3.  Parthenogenesis:

 

 

Sexual Reproduction

Advantages:        

 

 

Disadvantages:

               

 

Types of Animal Life Cycles

Diploid life cycles:

 

Haploid life cycles:

 

Alternation of generations:

 

 

 

Sexual Reproduction

Sexual reproduction consists of:

gametogenesis:

mating:

fertilization:

 

 

Gametogenesis

spermatogenesis:

 

oogenesis:

               

 

dioecious:

 

monoecious:

 

Hermaphroditic

                simultaneous hermaphrodites

                               

                sequential hermaphrodites

 

 

Fertilization

1. External

                               

2. Internal

                                 

Oviparous

Viviparous