Asexual and Sexual Reproduction
Asexual reproduction ia used by bacteria,spore production in fungi and tuber formation in potatoes
Summary of asexual reproduction video
Some advantages of asexual reproduction are
– Large numbers of offspring are reproduced very quickly from only one
parent when conditions are favourable.
– Large colonies can form that can out – complete other organisms for nutrients and water.
– Large numbers of organisms mean that species may survive when conditions or the number of predators change.
– Energy is not required to find a mate.
Some disadvantages of asexual reproduction are
– Offspring are genetic clones. A negative mutation can make a sexually produced organisms susceptible to disease and can destroy large numbers of offspring.
– Some methods of asexual reproduction produce offspring that are close together and compete for food and space.
– Unfavourable conditions such as extreme temperatures can wipe out entire colonies.
Define sexual reproduction as the process involving the fusion of haploid nuclei to form a diploid zygote and the production of genetically dissimilar offspring
Sexual reproduction can take many forms like this!
Some Advantages of sexual reproduction are:
- Genetic variation (the ability of organisms to adapt over time). Due to the fusing of gametes (one from each parent), the offspring displays a mixture of traits.
- Two parents are required
Some Disadvantages of sexual reproduction are:
- Energy must be consumed to find a suitable mate.
- Mutations may occur
- Not as rapid and efficient as other forms of reproduction (eg binary fission)
- Very few offspring produced at a time