Sexual vs asexual reproduction (Edexcel GCSE Biology): Flashcards
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Speed advantage of asexual reproduction
Speed advantage of asexual reproduction
Quick reproduction allows rapid colonisation of new areas
Number of parents needed for asexual reproduction
Number of parents needed for asexual reproduction
Only one parent needed
Organism that reproduces asexually when food is plentiful
Organism that reproduces asexually when food is plentiful
Aphids (in summer)
Genetic variation in asexual reproduction
Genetic variation in asexual reproduction
No genetic variation - offspring genetically identical
Disease risk with asexual reproduction
Disease risk with asexual reproduction
Increased risk of passing on diseases
Disease affecting banana plants (asexual example)
Disease affecting banana plants (asexual example)
Black Sigatoka - all bananas likely affected
Genetic advantage of sexual reproduction
Genetic advantage of sexual reproduction
Diversity & genetic mixing; prevents disease inheritance
Adaptability benefit of sexual reproduction
Adaptability benefit of sexual reproduction
Better adapted to changes; leads to natural selection
Energy & time disadvantage of sexual reproduction
Energy & time disadvantage of sexual reproduction
More energy to attract mates; longer process; fewer offspring
Number of parents needed for sexual reproduction
Number of parents needed for sexual reproduction
Two parents needed
Max distance polar bears may walk to find a mate
Max distance polar bears may walk to find a mate
Up to 100 miles
Natural asexual reproduction process in yeast
Natural asexual reproduction process in yeast
Budding - parent cell produces bud