AQA GCSE BIOLOGY - INHERITANCE, VARIATION & EVOLUTION

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