Leaving Certificate Biology Evolution & Variation iQuiz

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2. What term is given to the genetic makeup of an individual or the genes that they inherit? Genotype Genetic code Phenotype Gene pool

3. A spontaneous change in the sequence of nitrogenous bases in a gene or a chromosome is called … Genotype Phenotype Test cross Mutation

4. A feature that an organism or species possesses, develops or evolves that suits/adjusts the organism to its environment to increase it’s chances of survival and reduce competition is … Evolution An adaptation Natural selection A vestigial form

5. How modern plants and animals have gradually developed from pre-existing forms over long periods of time is also known as … Natural selection Evolution Adaptation Mutations

6. The ability to cycle a bicycle is an example of … A spontaneous generation A gene expression An inherited variation An acquired variation

7. Which of the following describes characters of organisms that have seemingly lost most or all of their function in a species through evolution? Pentadactyl Vestigiality Homologous Adaptive radiation

8. The term used to describe the same structure found on different organisms, originating from a common ancestor, but with different functions is … Vestigial structure Adaptive radiation Homologous structure Pentadactyl limb

9. The way nature selects organisms with advantageous genes which allow them to adapt to the environment, and pass them on to successive generations is known as … Adaptation Natural selection Evolution Mutations

10. What term is given to the five-fingered appendage found in nearly all terrestrial vertebrates? Pentadactyl limb Forelimb Hindlimb None of these

11. Which of the following is not an inheritable blood disorder? Diabetes mellitus Haemophilia Cystic fibrosis Sickle cell anaemia

12. Which of the following is a result of natural selection? Inherited variations Speciation Spontaneous mutations Over-breeding

13. Which of the following is not an area of study in support of evolution? Palaeontology Comparative anatomy Embryology Taxonomy

14. In addition to Darwin, another scientist associated with theories of evolution is … Mendel Wallace Jenner Benedict

15. Homologous chromosomes which are similar in both the sexes are referred to as … Sex chromosomes Homozygous Autosomes Heterozygous

16. Which of the following is not an example of a vestigial organ or structure? Muscle of the human ear Penguin’s wing Human appendix Coccyx of the human skeleton

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