B3h More Of The Same Higher Questions

B3h More Of The Same Questions higher

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  • Created on: 14-05-12 07:23
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B3h More of the Same
1. Sexual reproduction is when there are two p................ involved. A male g................ (sex cell) joins
up with a female g................ (sex cell). This process is known as f................ . The offspring
produced in this way will contain chromosomes from b................ parents.
2. In animals the male sex cell (gamete) is normally s................ and the female sex cell is normally
the e................ . In plants the male gamete is p................ and the female sex cell is the
o................ . In plants s................ are produced as a result of fertilisation.
1. The potato can be cut up into several p................ and planted to produce many identical potato
plants all the plants produced will be genetically i................ to the original plant the potato was
taken from. This type of reproduction is called a................ reproduction. The offspring produced
by asexual reproduction are called c................ . The clones are genetically identical.
4. Advantages of sexual reproduction, for example plants grown from seeds:
G................ v................
If one of them is susceptible to a disease the others may s................ (because they
have genetic variation)
5. The disadvantages of sexual reproduction:
We cannot be s................ about the o................ ( babies or plants, generally this is
about plantscrops such as, tomatoes, apple trees, flowering plants)
They will not be of the same q................ or characteristics
6. Advantages of asexual reproduction, is just the opposite of 4. Try to write these for yourself:
7. Ann grows strawberry plants.
Strawberry plants can reproduce sexually or asexually
a) If all of Ann's strawberry plants have been produced by asexual reproduction.
They are g................ i................ because they have all been produced from o........
strawberry plant.
b) The table shows some of the stages when a strawberry plant reproduce asexually.
Put the stages in the correct order.
Write numbers in the table to show your answer.
The first one has been done for you.

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Ann's neighbour Harry grows apple trees.
He has grown his apple trees from seeds. His trees are not genetically identical.
Describe one advantage of Harry's apple trees not being genetically identical.
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