WorksheetsGenetics
Total questions: 20
Worksheet time: 10mins
What is the phenotype of an organism?
Characteristics
Genome
What is the genotype of an organism?
the combination of alleles in its genes
the combination of genes
the combination of hair colours in a family
Is human eye colour coded for by one gene or many genes?
one
many
One gene codes for the cell membrane protein CFTR. There are many alleles for the CFTR gene. How many alleles do you have for the CFTR gene in one of your body cells?
one
two
three
1230000
A mutation of the CFTR gene can lead to the disorder cystic fibrosis. What is a mutation?
a change in the order of bases that form the gene
a change that makes you a superhero
a change that gives you a disease
Cystic fibrosis is an inherited disorder. What does that mean?
It is passed from parent to offspring in the genes in a gamete.
You get it when someone in your family passes away
What research, finished in 2003, was the first effort to map a complete human genome?
The Human Genome Project
The Human Phenome Project
The Human Race
How could the Human Genome Project help identify diseases they might develop?
Some alleles show an increased risk for the person of developing a genetic disorder.
It would tell doctors the diseases someone will definitely get
It could mean the health care service can know how many people are likely to get a disease
How could a map of a person’s genome identify which medicines they should be given?
Some alleles affect how well medicines work in the body
It tells doctors to prescribe antibiotics for a viral infection
Many mutations have no effect on the phenotype. Why?
Biology is mad yeh
The don't change the order of amino acids needs to make a protein
Some people are lucky
What shape is a DNA molecule?
Double Helix
Egg shaped
Spiral
What part of a DNA strand contains the instructions for a protein?
Gene
Genome
Allele
DNA
What are the letters of the bases that form the DNA code?
A T C G
A T U B
C B D E
R U D E
How do the bases A, T, C and G pair up in DNA?
A&T, C&G
R&D U&E
A&T U&B
C&D B&E
Apart from bases, what other parts are needed in a DNA molecule?
phosphate group, sugar
fats, sulphate group
protein, nitrate group
What is one phosphate group, one sugar and one base called?
nucleotide
ribonucleic acid
allele
Why is DNA a polymer?
It's made of lots of nucleotides
It's made of lots of ribonucleic acids
It's made of lots of tiny people
Why are proteins polymers?
They're made of lots of amino acids
They're made of lots of fatty acids
They're made of lots of glucose molecules
What is a zygote?
a fertilised egg
an alien
a superhero
an egg or a sperm
Why do people have naturally different colours of hair?
They have slightly different genes
They had a bump on the head in different places when they were a child
They wished really hard
They ate their crusts when they were little
