More on reproduction

Question 1

Why is offspring in sexual reproduction an advantage over asexual reproduction?

Answer 1

Offspring from sexual reproduction have a mixture of two sets of chromosomes. The organism inherits genes from both parents, which produces variation in the offspring

Question 2

Why is variation in sexual reproduction an advantage over asexual reproduction?

Answer 2

Variation increases the chance of species surviving a change in the environment. While a change in the environment could kill some individuals, it’s likely that variation will have led to some of the
offspring being able to survive in the new environment. They have a survival advantage

Question 3

Why is better adaption in sexual reproduction an advantage over asexual reproduction?

Answer 3

Because individuals with characteristics that make them better adapted to the environment have a better chance of survival, they are more likely to breast successfully and pass the genes for the characteristics on. This
is know as natural selection

Question 4

What do
you use selective breeding for ?

Answer 4

To speed up natural selection

Question 5

Why is the use of selective breeding to speed up natural selection in sexual reproduction an advantage over asexual reproduction?

Answer 5

This allows us to produced animals with desirable characteristics. Selective breeding is where individuals with a desirable characteristic too. This means that we can increase food production

Question 6

What advantages have asexual reproduction have over sexual reproduction ?

Answer 6

• Only needs to be one parent
• less energy, don’t have to find a mate
• Faster
• Many identical offspring can be produce in favourable conditions

Question 7

How does malaria spread using both methods ?

Answer 7

The parasite reproduces sexually when it’s in the mosquito and asexually when it’s in the human host

Question 8

What does fungus do ?