1. Match the beginnings of these sentences with the right endings. Drag your answers into the spaces.
insulin and place it in a bacterial cell.
genetic fingerprinting.
the DNA of an organism is altered.
treating or preventing disease.
is a virus.
the presence of a suspect.
for genetically modified.
for treating some cancers.
a)
Gene therapy is a new way of
b)
The vector most commonly used
c)
Gene therapy could be used
d)
In genetic engineering
e)
Scientists can remove the gene for human
f)
GM is the standard abbreviation
g)
DNA fingerprinting is also called
h)
Genetic fingerprinting can confirm
2. Decide whether each of the following statements about the production of insulin
by genetic engineering are true or false:
a)
Plasmids are found in bacterial cells.
b)
The gene for production of insulin is placed in human DNA.
c)
Some bacteria naturally produce insulin.
d)
Enzymes are used to remove the human gene for insulin.
e)
A large amount of insulin can be produced by bacteria.
3. Which one of the following statements about genetic engineering is true?
a)
b)
c)
4. The diagram below is a Punnett's Square to show how the genes for tongue-rolling are passed on.
If one parent is a heterozygous tongue-roller and the other is not a tongue-roller, click and drag the possible
gametes and allele combinations in the offspring.
gametes:
T
T
T
T
t
t
t
t
alleles:
TT
TT
TT
TT
Tt
Tt
Tt
Tt
tt
tt
tt
tt
What are the chances of a child being a tongue-roller?
5. Complete the following genetic diagram by clicking and dragging each possible gamete and
allele combination for eye colour. If one parent is heterozygous for brown eyes and the other has blue eyes,
click and drag the possible gametes and allele combinations in the offspring.
gametes:
B
B
B
B
b
b
b
b
alleles:
BB
BB
BB
BB
Bb
Bb
Bb
Bb
bb
bb
bb
bb
What are the chances of a child having blue eyes?
6. Select the correct word/phrase and fill in the table below to show the differences between meiosis and mitosis:
23
Sex cells
One division
Haploid
Two divisions
Pair of identical daughter cells
Diploid
46
mitosis
meiosis
What does this process produce?
How many chromosomes are there in the nucleus of the cells produced?
