Daily Review
Type of Reproduction
• There are two types of reproduction:
1. Asexual reproduction
2. Sexual reproduction
• Asexual reproduction involves a single
organism making an exact genetic copy
of itself.
• Sexual reproduction involves
combining genetic material from two
organisms to produce a new, genetically
unique organism.
Think, Pair, Share: Which type of reproduction
produces more variety in the offspring?
1
Daily Review
Forms of Asexual Reproduction
1. Binary fission is when single-celled
organisms, such as bacteria, split
into two cells.
2. Fragmentation occurs when
multicellular organisms split into two.
3. Parthenogenesis occurs when
unfertilised eggs hatch into new
organisms.
4. Vegetative reproduction is when part
of a plant (leaves or stem) breaks off
and creates a new plant.
Think-pair-share:
Which type of asexual reproduction
is being shown in the photo?
Explain your choice.
2
Daily Review
Forms of Asexual Reproduction
1. Binary fission is when single-celled
organisms, such as bacteria, split
into two cells.
2. Fragmentation occurs when
multicellular organisms split into two.
3. Parthenogenesis occurs when
unfertilised eggs hatch into new
organisms.
4. Vegetative reproduction is when part
of a plant (leaves or stem) breaks off
and creates a new plant.
Think-pair-share:
Which type of asexual reproduction
is being shown in the photo?
Explain your choice.
3
Daily Review
Identifying Asexual and Sexual Reproduction
1.
Is there one parent organism? = Asexual
Are there two parent organisms? = Sexual
2. Describe the genetic variety in the offspring
Pollen from one plant is transferred
to the flowers of another plant.
This is sexual reproduction
because there are two parent
organisms.
The genetics of the offspring will
be different to the parents.
Daily Review
Identifying Asexual and Sexual Reproduction
1.
Is there one parent organism? = Asexual
Are there two parent organisms? = Sexual
2. Describe the genetic variety in the offspring
A male frog fertilises the eggs laid
by a female frog.
This is sexual reproduction because
there are two parent organisms.
The genetics of the offspring will be
different to the parents.
Daily Review
Identifying Asexual and Sexual Reproduction
1.
Is there one parent organism? = Asexual
Are there two parent organisms? = Sexual
2. Describe the genetic variety in the offspring
An amoeba uses binary fission
to produce a new offspring.
This is asexual reproduction
because there is only one parent
organism.
The offspring is identical to the
parents.
Student worksheet
8.1 There are different ways of reproducing
Pages 140–141 and 211
Reproduction
1
What is the difference between sexual and asexual reproduction?
Asexual reproduction
2
What can be said of the genetic material between parent and offspring in asexual reproduction?
3
What is binary fission?
4
What is parthenogenesis?
5
Give an example of an organism that undergoes parthenogenesis.
6
What is fragmentation?
 Oxford University Press 2017
Oxford Science 8 Western Australian Curriculum Teacher obook assess ISBN 9780190307172
Permission has been granted for this page to be photocopied within the purchasing institution only.
7
Give an example of an organism that undergoes fragmentation.
8
What is fragmentation in plants called?
9
What parts of a plant does the term in question 8 refer to? Give three examples.
Sexual reproduction
10 What is sexual reproduction?
11 What is offspring?
12 Why is variation within a population important?
13 What is the difference between identical and non-identical twins in terms of their DNA?
 Oxford University Press 2017
Oxford Science 8 Western Australian Curriculum Teacher obook assess ISBN 9780190307172
Permission has been granted for this page to be photocopied within the purchasing institution only.
Hermaphrodites
14 What is a hermaphrodite?
15 Some organisms that are hermaphrodites can ‘turn off’ one sexual system. When and why would this
be beneficial?
Extend your understanding
Hermaphroditism sometimes occurs in humans.
16 What tissues and organs must a human be born with in order to be a hermaphrodite?
17 What happens in the fertilisation process for hermaphroditism to occur in humans?
18 What is the more common and accepted term for a person who is a hermaphrodite?
 Oxford University Press 2017
Oxford Science 8 Western Australian Curriculum Teacher obook assess ISBN 9780190307172
Permission has been granted for this page to be photocopied within the purchasing institution only.