Reproduction

Question 1

What does sexual reproduction involve

Answer 1

Producing new life
Passing on genes
Involves the joining of 2 sex cells
Fusion of nucleus of 2 gametes to from a zygote
Formation of gametes involves meiosis
Requires less energy
Population grows slowly

Question 2

What does A-sexual reproduction involve

Answer 2

produce new life
Pass genes
Only involves 1 adult
Doesn’t involve sex cells or fertilisation
Offspring are genetically identical to parent and to each other
Only mitosis
Requires more energy
Population grows rapidly

Question 3

What are the different gametes

Answer 3

Animal- sperm and egg cell
Plant - pollen and egg cell

Question 4

Advantages of Asexual reproduction

Answer 4

More time and energy efficient
Population can be increased rapidly when conditions are right
Reproduction is completed much faster
Can exploit suitable environments quickly because its quicker

Question 5

How old is strawberry, plants reproduce, both sexually and asexually

Answer 5

Sexual reproduction: they produce gametes in the flowers, Gametes are called diopods
Are you sexual reproduction: binary fission

Question 6

How can malarial parasites produce both asexually and sexually?

Answer 6

Sexual reproduction: when they suck blood from the victims are male and female, gametes, sexually reproduce in blood.
Asexual reproduction: injects cells in the blood, where they reproduce in the liver asexually.

Question 6

How can daffodils reproduce asexually and sexually

Answer 6

They produce sexually by seed
And asexually by bulb division

Question 6

How can fungi produce both asexually and sexually

Answer 6

Sexual reproduction: grows from spare new fungi grow from
Asexual reproduction: reproduce by fragmenting, budding, or by spores

Question 6

Disadvantage of sexual reproduction

Answer 6

Takes time and energy to find mate
Difficult for isolated members of society to reproduce

Question 6

Disadvantage of asexual reproduction

Answer 6

Population 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.
Limited genetic variation in population as offspring are genetically identical to their parents.

Question 7

Advantages of sexual reproduction

Answer 7

Increases genetic variation.
The species can adapt to new environments due to variation giving them survival advantage because of genetic material is different.
Diseases is less likely to affect population due to variation.