Cloning and types of reproduction
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1 Friday 9 th January 2015 Cloning and types of reproduction B1.7.2
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3 All cells (excepts sperm/egg) contain chromosomes Sperm fertilises an egg Embryo/baby ( chromosomes) + ( chromosomes) ( chromosomes)
4 All cells (excepts sperm/egg) contain chromosomes Sperm fertilises an egg Embryo/baby (23 chromosomes) + (23 chromosomes) (46 chromosomes)
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6 gene nucleus chromosome
7 Two types of reproduction Sexual Joining of sex cells (gametes) (sperm and egg) Offspring have genetic characteristics from mother and father Genetic variation of offspring Better chance of survival Asexual Offspring originate from one parent All offspring are genetically identical to parent and each other (called clones) No genetic variation
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9 sexual characteristic mutation chromosome
10 asexual eggs gametes fertilisation inheritance ovaries sexual sperms testes variation The genetic information from the mother is carried in the... which are made in the....the genetic information from the father is carried in the... which are made in the.... In... reproduction, offspring are produced that are genetically different from either parent. This happens because genetic information from each parent is carried in the... and joined together during...to develop into a fetus. In... reproduction, genetically identical offspring are produced because no mixing of genetic material takes place.
11 asexual eggs gametes fertilisation inheritance ovaries sexual sperms testes variation eggs The genetic information from the mother is carried in the... which are made in the ovaries....the genetic information from the father is carried in the sperm... which are made in the... testes. In... sexual reproduction, offspring are produced that are genetically different from either parent. This happens because genetic information from each parent is carried in the... gametes and joined together during fertilisation... to develop into a fetus. In... asexual reproduction, genetically identical offspring are produced because no mixing of genetic material takes place.
12 Clone make a genetically identical copy Plant cuttings Tissue culture Embryo transplantation
13 Cuttings
14 Cloning using cuttings
15 asexual characteristics clones engineering genes sexual The colour and shape of the leaves are known as... The information for leaf colour is stored in parts of chromosomes called...the new plants are known as... The new plants have been produced by... reproduction. Name one other way of producing plants that are identical to their parents Name one way of producing animals that are identical to each other.
16 characteristics asexual characteristics clones engineering genes sexual The colour and shape of the leaves are known as... The information for leaf colour is stored in parts of chromosomes called genes...the new plants are known as clones... The new plants have been produced by... reproduction. asexual Name one other way of producing plants that are identical to their parents Name one way of producing animals that are identical to each other. Embryo transplantation or adult cell cloning Tissue culture
17 Cloning using tissue culture
18 Cloning using tissue culture
19 Embryo transplants
20 asexual clones cuttings gametes genetic sexual A bull was mated with a cow. This is... reproduction. The embryo produced was split into four parts. The calves in the diagram have identical genetic information. This is because the calves were produced by... reproduction. The identical calves are known as...
21 sexual asexual clones cuttings gametes genetic sexual A bull was mated with a cow. This is... reproduction. The embryo produced was split into four parts. The calves in the diagram have identical genetic information. This is because the calves were produced by asexual... reproduction. The identical calves are known as... clones
22 The diagram shows one way of cloning sheep called embryo transplantation. identical asexual clones fertilisation sexual The original embryo in the diagram developed following the.... of an egg and a sperm. This is called... reproduction. The twins in the diagram have... genetic information. This is because the two embryos were produced by... reproduction. Because of this they are known as...
23 fertilisation The diagram shows one way of cloning sheep called embryo transplantation. identical asexual clones fertilisation sexual The original embryo in the diagram developed following the.... of an egg and a sperm. This is called... sexual reproduction. The twins in the diagram have... identical genetic information. This is because the two embryos were produced by... reproduction. Because of this they are known as... clones asexual
24 Correctly match three different cloning techniques
25 Correctly match three different cloning techniques
26 Adult cell cloning Dolly the sheep 1997
27 Adult cell cloning
28 Cloning Benefits/Problems
29 Human Adult Cell Cloning
30 Cloned animal
31 egg embryo skin cell nucleus Cloned animal
32 Re-arrange in the correct order Nucleus is removed from egg cell to make it empty Give a small electric shock The donor nucleus is transferred into the empty egg Lamb born is a clone of donor sheep The nucleus from the body cell of the donor sheep is removed Implant embryo into uterus of another sheep (surrogate mother) Egg cell starts to divide to form a ball of cells and then an embryo
33 Adult cell cloning (correct order) Nucleus is removed from egg cell to make it empty The nucleus from the body cell of the donor sheep is removed The donor nucleus is transferred into the empty egg Give a small electric shock Egg cell starts to divide to form a ball of cells and then an embryo Implant embryo into uterus of another sheep (surrogate mother) Lamb born is a clone of donor sheep
34 Adult cell cloning Benefits Can save animals from extinction Disadvantages Ethical concerns about animal cloning Can clone animals that have been genetically engineered to produce special milk proteins or medicines Limits genetic variation, so if the environment changes then being identical may harm animal survival Concerns about using the technique to clone humans in the future
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