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The Evolution of Reproductive Behaviour Chapter 10 Alcock (Animal Behavior) Tom Wenseleers

The Evolution of Reproductive Behaviour Chapter 10 Alcock (Animal Behavior) Tom Wenseleers

The Evolution of Reproductive Behaviour Chapter 10 Alcock (Animal Behavior) Tom Wenseleers. Ethology & Behavioural Ecology. Plan of talk. Evolutionary origins of two sexes Typical sex roles Reversed sex roles Male-male competition Female choice. Aims & Objectives. Aims

By naomi-buckner
(363 views)


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Gametes

Gametes

Gametes. Structure and Function. Human Ovum. Human Sperm. How are they adapted?. Ova. Sperm. Smaller cell Sperm has a long tail Has large numbers of mitochondria present Has an acrosome in the head which contains digestive enzymes. Large cell

By wallis (450 views)

MEIOSIS makes gametes

MEIOSIS makes gametes

MEIOSIS makes gametes. Meiosis produces gametes. Meiosis was first observed by the Belgian cytologist Pierre-Joseph van Beneden in 1887 60 years before we knew that DNA contained the genetic material Gametes (eggs and sperm) contain half the complement of chromosomes found in other cells

By sheng (148 views)

Production of Gametes

Production of Gametes

Production of Gametes. MEIOSIS. Meiosis Facts. Meiosis. The form of cell division by which gametes , with half the number of chromosomes , are produced Diploid (2n)  haploid (n) Meiosis is sexual reproduction Two divisions ( meiosis I and meiosis II ). Meiosis.

By mercer (358 views)

What are Gametes?

What are Gametes?

What are Gametes?. Check Point. 1. What is a gamete? A sex cell 2. How many chromosomes does it have? 23. I. Human body cells have 46 chromosomes. A. The cells in your body are “specialized”, which means that certain cells are specially formed to do certain jobs.

By lstickney (0 views)

Production of Gametes

Production of Gametes

Production of Gametes. MEIOSIS. Meiosis Facts. Meiosis. The form of cell division by which gametes , with half the number of chromosomes , are produced Diploid (2n)  haploid (n) Meiosis is sexual reproduction Two divisions ( meiosis I and meiosis II ). Meiosis.

By kimcampbell (1 views)

Gametes and Fertilization

Gametes and Fertilization

Gametes refer to mature cells produced by the reproductive system when the organism is sexually reproducing, referred to as germ cells. Gametes are divided into male gametes and female gametes. The female gametes of animals and plants are usually called egg cells, and the male gametes are called sperm.

By thomasm2014 (1 views)

MEIOSIS  … making gametes….

MEIOSIS … making gametes….

MEIOSIS … making gametes…. Meiosis is…. Making the cells that make babies! (egg and sperm) The process of nuclear division that reduces the number of chromosomes by half Start with somatic cell End with gamete. What type of cells produce egg/sperm?. Ovary and testes cells!.

By datkins (0 views)

La formation des GAMETES

La formation des GAMETES

La formation des GAMETES. L’objectif de cette activité est de comprendre comment la formation des gamètes aboutit à des gamètes génétiquement différents. Ce que je sais déjà :

By ormand (127 views)

Meiosis: Formation of gametes

Meiosis: Formation of gametes

Meiosis: Formation of gametes. Utilizing http://www.biology.com BioCoach Activity “Meiosis”. Meiosis occurs only in sexually reproducing organisms. In animals, where the somatic (body) cells are diploid, the products of meiosis are the gametes.

By deo (255 views)