Biology Class Test - Reproduction

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  • Created by: noblea
  • Created on: 21-10-15 17:27
Name the two main methods of reproduction.
Asexual and sexual.
1 of 15
In asexual reproduction, the offspring have exactly the same genes as the parent. They are ______.
Clones.
2 of 15
Sexual reproduction involves the joining together of gametes. This is called _____________.
Fertilisation.
3 of 15
Give 4 differences between sperms and eggs.
Sperms are smaller and swim using a tail. Eggs have a food store and there are far fewer of them.
4 of 15
What are a) male sex cells and b) female sex cells in a flowing plant?
a) pollen grains b) egg cells
5 of 15
What do we call it when a pollen nucleus joins with an egg nucleus to make a seed?
Fertilisation.
6 of 15
What do we call the process of cloning plants and growing them in agar jelly?
Tissue culturing.
7 of 15
Why does tissue culture have to take place in sterile conditions?
To prevent contamination by fungi.
8 of 15
Name 2 advantages of plant tissue culture.
Any 2 of: cheap, time-effective, all the good qualities of parent plant, can be done all year round.
9 of 15
Name 2 disadvantages of plant tissue culture.
All plants will be effected by a disease or change in environmental conditions, plants will lack genetic variation.
10 of 15
Name 2 other ways of cloning plants.
Grafting and taking cuttings.
11 of 15
Explain how Dolly the sheep was created.
Nucleus taken out of mother's udder cell and inserted into an egg (of a donor sheep) which had its nucleus removed.
12 of 15
What is embryo transplantation?
Embryos are split and transplanted into surrogate mothers.
13 of 15
What are the potential benefits of human cloning?
Cloned stem cells could be used to treat incurable diseases or create replacement body parts.
14 of 15
What are the arguments against human cloning?
Many people argue that creating human embryos for experimentation and subsequent destruction is unethical.
15 of 15

Other cards in this set

Card 2

Front

In asexual reproduction, the offspring have exactly the same genes as the parent. They are ______.

Back

Clones.

Card 3

Front

Sexual reproduction involves the joining together of gametes. This is called _____________.

Back

Preview of the front of card 3

Card 4

Front

Give 4 differences between sperms and eggs.

Back

Preview of the front of card 4

Card 5

Front

What are a) male sex cells and b) female sex cells in a flowing plant?

Back

Preview of the front of card 5
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