Types Of Reproduction Flashcards
What are the two types of reproduction?
Asexual and sexual.
Describe asexual reproduction.
Involves 1 parent and there is no joining of gametes. No variety in offspring.
What does asexual reproduction give a rise to?
Clones
What produces asexually?
Bacteria, plants, cells of your body - replace worn tissue.
Describe sexual reproduction.
Involve a male sex cell and female sex cell from two parents. These two gametes join together to form a new individual.
Why is sexual reproduction important?
It introduces variety.
What gametes are used in sexual reproduction in humans?
Ova and sperm
Why is sexual reproduction risky?
It relies on the sex cells from two individuals meeting.
Why is variation important?
It makes it more likely that at least a few of the offspring will have the ability to survive difficult conditions.
What characteristics are controlled by several pairs of genes?
Hair and eye colour.
What characteristics are controlled by a single pair of genes?
Whether your ear lobes are attached or not, whether your thumb is straight or curved, whether you have dimples when you smile.
