16.2 Asexual and Sexual Reproduction

Question 1

What’s Asexual reproduction?

Answer 1

• The process resulting in the production of genetically identical offspring from one parent

Question 2

3 examples of Asexual reproduction

Answer 2

• budding in yeast and hydra
• binary fission in bacteria
• fragmentation in sponges and sea stars

Question 3

What’s sexual reproduction?

Answer 3

process involving the fusion of haploid nuclei (fertilisation) to form a diploid zygote and the production of genetically different offspring

Question 4

3 advantages of asexual

Answer 4

ASEXUAL:

• Population can be increased rapidly when conditions are right
• Can exploit suitable environments quickly
• More time and energy efficient

Question 5

3 disadvantages of Asexual

Answer 5

• Limited generic variation in population. Offspring are genetically identical to their parents
• Population is vulnerable to changes in conditions and may only be suited for one habitat
• Disease is likely to affect the whole population as there is no genetic variation

Question 6

3 advantages of sexual reproduction

Answer 6

• Increases genetic variation
• Species can adapt to view environments due to variation, giving them a survival advantage
• Disease is less likely to affect population due to variation

Question 7

2 disadvantages of sexual reproduction

Answer 7

• Takes time + Energy to find mates
• Difficult for isolated members of the species to reproduce