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WorksheetsAQA GCSE BIOLOGY - INHERITANCE, VARIATION & EVOLUTION
Total questions: 32
Worksheet time: 16mins
Which of the five kingdoms would a multicellular organism with no cell walls belong to?
Prokaryota
Animalia
Fungi
Plantae
What is required for speciation to occur?
Geographical separation of populations
Genetically identical organisms
Cross breeding of two different species
All of these
Which of these taxonomic groups contains the largest number of species?
Class
Family
Order
Phylum
If you need both of the alleles to be the same to give a particular phenotype, that allele is…
heterozygous
dominant
recessive
stronger
How many copies of each gene do you have in your DNA?
1
2
4
8
How do bacteria reproduce?
Asexual reproduction giving genetically identical offspring
Sexual reproduction giving genetically identical offspring
Asexual reproduction giving genetically varied offspring
Sexual reproduction giving genetically varied offspring
Why might there be gaps in the fossil record?
Early life forms are soft bodied and not preserved
Some fossils are lost or destroyed by geological processes
The conditions for preservation were not met
All of these
Which of the following features is most likely to be found on a wind-pollinated plant?
Bright coloured petals
Sweet nectar
Sweet smelling fragrance
Stamens that hang outside the flower
Which of these ideas is NOT part of the theory of natural selection?
There is variation in a population
The individuals that are best suited to the environment survive
The gene for the desirable characteristic is passed on to offspring
Eventually, fewer individuals in the population have the desirable characteristic
What is the evidence that the fossil known as Lucy did not live in trees?
No opposable big toe
Small skull capacity
Dexterous hands
Stone tools found nearby
In Mendel's pea plant experiments, what percentage of the offspring will have purple flowers when two purple heterozygous plants are bred together?
100%
75%
50%
25%
What is the minimum number of bases used to code for an amino acid?
1
2
3
4
What are alleles?
Different forms of the same gene
Pairs of chromosomes
The characteristics you inherit
The twisted shape of DNA
Which of these is NOT an example of discontinuous variation?
Eye colour
Ear shape
Weight
Ability to roll tongue
What is the genotype for a male offspring?
XX
XY
YY
Xx
What evidence that supports Darwin's theory of evolution was not known until after he died?
Comparing wildlife and fossils he found on his voyage
Selective breeding shows a species can change over time
There is always variation within a species
Genes are the mechanism for inheritance
What type of cloning is commonly used to produce cattle and horses?
Adult cell cloning
Embryo transplant
Taking cuttings
Tissue culture
Which of these is an argument in favour of GM crops?
Herbicide resistant crops can be developed to increase yield
Pollen may fertillise unmodified crops
Insects pollinating and feeding on GM crops may be harmed
Not enough is known about how the gene inserts itself
Which of the following is NOT a plausible cause of the extinction of dinosaurs?
Climate change
Habitat destruction by humans
A single catastrophic event such as an asteroid impact
New competitors, predators or diseases
What is the final step in selective breeding?
Breeding the parents together
Selecting parents with desirable characteristics
Repeating over many generations until all individuals have the desired characteristics
Selecting pairs of offspring with desirable characteristics and breeding them together
Which of these is a recessive genetic disorder?
Marfan syndrome
Cystic fibrosis
Huntington's disease
Polydactyly
What did Franklin and Wilkins contribute to our understanding of DNA?
How the bases in DNA were paired together
That DNA is found in chromosomes
That the molecule has a double helix shape
All of these
For parents with genotypes Bb and Bb, what are the possible genotypes of the offspring?
BB, BB, bb, bb
BB, Bb, Bb, bb
Bb, Bb, Bb, Bb
Bb, Bb, bb, bb
Which of these features is not found on, or in, a sperm?
Flagellum
Acrosome
Many mitochondria
Yolk
What are the four bases found in DNA?
AGUT
AUCT
AGCT
AGCU
What is the female part of a flower called?
Stamen
Petal
Carpel
Sepal
What is chorionic villus testing?
Genetic testing of cells from the amniotic fluid of an unborn baby
Genetic testing of cells taken directly from the body of an unborn baby
Genetic testing of cells from the placenta of an unborn baby
Genetic testing of the cells of an embryo created through IVF
At what stage in a pregnancy might a nuchal translucency scan take place?
8-10 weeks
10-12 weeks
11-13 weeks
15-20 weeks
What is the name of the cell formed immediately after fertilisation?
Radicle
Zygote
Embryo
Seed
An organism such as bacteria or virus that carries a new gene is referred to as a…
vector
plasmid
carrier
holder
Which of these was the key idea in Darwin's theory of evolution?
Humans are directly descended from apes
Organisms can pass on acquired characteristics
All living things evolved from simple life forms
All of these
Which cells are produced by meiosis?
2 diploid gametes
2 haploid gametes
4 diploid gametes
4 haploid gametes
