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What have these animals got in common?

What have these animals got in common?. Class work. To further our knowledge of reproduction. Title - Reproduction. Learning Objective. Learning Outcome – Grade E-F. Learning Outcome – Grade C-D. Sexual reproduction needs two parents, each parent produce sex cells called gametes.

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What have these animals got in common?

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  1. What have these animals got in common?

  2. Class work To further our knowledge of reproduction Title - Reproduction Learning Objective

  3. Learning Outcome – Grade E-F

  4. Learning Outcome – Grade C-D • Sexual reproduction needs two parents, each parent produce sex cells called gametes. • Can you describe what asexual reproduction involves?

  5. Genetic information Different genes control the development of different characteristics by giving instructions to the cell. These instructions are carried inside the nucleus by chromosomes. These instructions are made of a chemical called DNA.

  6. Recap from yesterday • Inside cells are coded instructions [bases/genes/protein]. • The instructionsare made of a chemical called [DNA/DNN/Chromosomes]. • The instructions are carried inside the nucleus on structures called [amino acid/Chromosomes/nucleus].

  7. Reproduction There are two main ways by which organisms can reproduce: Sexual Asexual What do you think sexual reproduction is? Sexual reproduction needs two parents. Each parent produces sex cells, called gametes. What are the male sex cells called? Sperm What are the female sex cells called? Eggs

  8. Reproduction Most human body cells contain46 chromosomes. How many pairs of chromosomes is this? 23 pairs of chromosomes You inherit half of your chromosomes from your mother and halfof them from your father. Other species have a different number of chromosomes; for example: • cat = 38 chromosomes • chicken = 78 chromosomes

  9. Reproduction • Asexual reproduction only needs one parent. All the offspring are genetically identical to each other, and their parent. • They are clones. • Organisms that produce asexually include; • Potatoes • Strawberry's • Spider plants

  10. Asexual reproduction • Gardeners use asexual reproduction to create new plants that are identical to the parent plants. • They cannot create new varieties this way. • But they can produce required plants much quicker than growing them from seeds produced in sexual reproduction

  11. Sexual and Asexual reproduction Give ONE example for each type of reproduction

  12. Dominoes review

  13. Dominoes - Review

  14. Learning Outcome – Grade E-F

  15. Learning Outcome – Grade C-D • Sexual reproduction needs two parents, each parent produce sex cells called gametes. • Can you describe what asexual reproduction involves?

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