+ reproduction with two parents, two sets of23 chromosomes. + Gentic variation
2 of 24
+ Name examples of gametes, what are gametes?
+ sex cells + sperm+ egg
3 of 24
+ Name factors of asexual reproduction
+ one parent + no genetic variation + clone
4 of 24
+ Give examples of asexual reproduction
+ Bacteria + Starfish +plants with bulbs
5 of 24
+ Why is no variation badI
+ All same +No differences+ one disease could kill whole population
6 of 24
+ What is tissue culture cloning?
+ Small group of cells from plant grow to new plants
7 of 24
+ What is a zygote?
+ FERTILIZED EGG
8 of 24
+ explain an embryo transplant
+ splitting apart cells from a developing embryo + before cells are specialised + embryo planted into womb
9 of 24
+ Name how there can be variety asexual reproduction
+ Mutation
10 of 24
+ Name variation in sexual reproduction
+ combination of different sets of emetic information
11 of 24
+ Name one other way variation can be caused
+ environment + eg. Nutrition, light
12 of 24
Name the steps of embryo transplant in a cow
+ sperm from bull implanted into cow + zygotes develop into embryo + embryos split into more embryos + they are transplanted into host mother's womb
13 of 24
Adavantgages of embryo transplants in cow
+ Higher yield of milk
14 of 24
Advantage of embryo transplants generally in farming
+ Faster than normal sexual reproduction
15 of 24
+ disadvantages if embryo transplants
+ unethical +against religious beliefs + could begin making human clones
16 of 24
+ name adult cell cloning steps
+nucleus removed from unfertilised egg + replaced with nucleus of an adult cell + electric shock is used to trigger cell division + embryos contain same genetic information as adult
17 of 24
Disadvantages of adult cell cloning
+ Child has genes of an elder person, problems, easily death + unethical +against god
18 of 24
Advantages of adult cell cloning
+ stops extinction + animals with ideal chacrterisics
19 of 24
Explain the steps of genetic energineering
+ enzyme cuts out insulin gene from DNA of a human cell + remove ring ofDNA from bacterium and open it with enzyme + insert insulin gene into plasma using enzyme + bacteria in fermanenter + each new bacteria has insulin gene
20 of 24
+ what cuts out th gene and puts gene into plasma
ENZYME
21 of 24
+ Where is insulin inserted into
Plasma
22 of 24
USES OF GE
+Genoese can modify animals and plants with ideal characteristics + healthy gene intodiseased emrbyo + crops are ideal
23 of 24
+ disadvantages of GE
+ Long term effects on humans health + weeds may get gene of resistance to herbicides + designer babies
24 of 24
Other cards in this set
Card 2
Front
+ What is sexual reproduction
Back
+ reproduction with two parents, two sets of23 chromosomes. + Gentic variation
Comments
No comments have yet been made