WorksheetsY11 Genetics Quiz
Total questions: 45
Worksheet time: 23mins
What is an allele?
Not this one
An alternative form of a gene
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What is the term used to describe having two sets of chromosomes?
Monoploid
Haploid
Triploid
Diploid
A dominant allele is ....
Always expressed in the phenotype
The one with the capital letter
Heterozygous
The trait you see
What is a gamete?
A fertilised egg
A sex cell such as a sperm or egg
A diploid cell
Heterozygous
What is genotype?
The alleles present
The genes present
What you look like
The genes for eye colour
What is a haploid cell?
A sperm or egg
A cell with one set of chromosomes
The result of meiosis
All these answers are correct
What is heterozygous?
Having one dominant and one recessive allele
Having two different genes
Having two different alleles
Having two dominant alleles
What is a homologous pair?
Two chromosomes with identical alleles but different genes
Two chromosomes with identical genes but different alleles
Two chromosomes that are the same
Two chromosomes with alleles the same
What does homozygous mean?
Having two alleles that are the same
Having two genes that are the same
Having two chromosomes that are the same
Having two chromosomes that are different
What is a mutation?
This answer is wrong
Do not push this button stupid
Are you an idiot? Look at the last answer!
Any change to the base sequence of DNA
What is a pedigree chart?
A chart that shows changes in your alleles over several generations
A chart that shows dog breeds over several generations
A chart that shows changes in alleles over several generations
A chart that tells you who your mum is
What is a phenotype?
The different alleles an organism has
The physical expression of the genotype
The different genes an organism has
All these answers are correct
An organism is pure breeding if .....
It is homozygous for its genes
It is homozygous for its alleles
It has pure young
It is fussy
What is a recessive trait?
A trait that only shows up if the organism is double recessive
A trait that only shows up if the organism is homozygous
A trait that only shows up when the organism feels like it
A trait that only shows up at parties
To find out if an organism is heterozygous or homozygous dominant we do what?
A test cross with a homozygous dominant
Examine its traits
A hot cross bun
A test cross with a homozygous recessive
What is a chromosome?
DNA
An X shaped protein
DNA plus the proteins that protect it
A double helix made of repeating nucleotides
What is the ultimate source of all variation?
Meiosis
Mutation
Your mum
The milkman
DNA has two main jobs. They are ......
Store genetic information to pass on to the next generation and build your proteins
To mutate to make new alleles and have kids
To mutate to make new alleles and pass the mutations on to the next generation
Store genetic information to pass on to the next generation and hold the recipes to build your proteins
What does meiosis do?
Creates mutations to ensure variation
Creates a gamete with half the chromosome number
Passes on chromosomes intact to the next generation
All these answers are correct
Describe the shape of a DNA molecule
A double helix of nucleotides
A molecule shaped like a corkscrew
A triple helix
Felix the cat
The sex chromosomes of a female are ...
XX
XY
YY
YX
The sex chromosomes of a male are ...
XX
XY
YX
YY
All the chromosomes are found in the ...
Nucleus
Nuclear
Nucleolus
Nuckles
The number of chromosomes in a human somatic cell are ...
23 pairs
46 pairs
23
46
An exact genetic copy of an organism is called a ...
Clown
Cline
Copy
Clone
The force that weeds out those unsuited to their environment is called ...
Natural selection
Neutral selection
Natural section
NCEA
Any feature that helps you survive in your environment is known as a ...
Big help
Camouflage
Feature
Adaptation
The building blocks of DNA are known as ....
Nucleotides
Bases
Sugars
Phosphates
It is the order of these that determine what you will become
Bases
Sugars
Phosphates
Chromosomes
A short length of DNA on a chromosome that holds the recipe to build a protein
Jean
Gean
Gene
Yes muppet, spelling IS important
What is a variant form of a gene?
A mutation
A change in the base sequence
An allele
A different gene
What is a zygote?
An unfertilized egg
A fertilized egg
A gamete
A sperm
What is a trait?
A physical characteristic
The phenotype
The physical expression of an allele
All of these answers are correct
Reproduction involving two parents is called .....
Binary fission
Asexual reproduction
Sexual reproduction
Marriage
What is mitosis?
Cell division for the production of gametes
Cell division for growth and repair
Cell division for increasing variability
All these answers are correct
Cell division that has only a single parent is known as .....
Budding
Binary fission
Asexual reproduction
All these answers are correct
The purpose of variation is to ...
Help species survive changes to the environment
Make sure everyone looks different
So we can tell people apart
All these answers are correct
DNA replication is known as .....
When DNA splits
When DNA divides
Mitosis
Semi-conservative replication
If you had TCA on one side of a DNA ladder, the other side would be .......
UGT
TCA
ACT
AGT
After DNA has replicated, each new side is called what?
Chromosome
Chromomere
Chromochrome
Chromotid
Where does variation come from?
Crossover
Independent assortment
Fertilisation
All these answers are correct
How many cell divisions occur during meiosis?
1
2
3
4
How many cell divisions occur during mitosis?
1
2
3
4
Crossing a homozygous dominant with a homozygous recessive would give what percentage of heterozygous individuals?
0%
50%
75%
100%
Crossing two heterozygous individuals would produce what ratio of PHENOTYPES
1 Dominant:1 Recessive
2 Dominant:1 Recessive
3 Dominant:1 Recessive
4 Dominant:1 Recessive
