1) Which part of the cell contains DNA? a) Nucleus b) Cloroplasts 2) How many chromosomes do MOST human cells contain? a) 46 b) 23 c) 47 d) 50 3) What is the shape of the DNA molecule? a) Circular b) Cylinder c) Double Helix d) ladder 4) A short section of DNA that controls a particular trait is known as a... a) nucleus b) genome c) gene d) chromosome 5) According to base pairing rules, the base Adenine (A) will always pair with which other base? a) Thymine (T) b) Cytosine (C) c) Adenine (A) d) Guanine (G) 6) Which sugar is present in the DNA molecule a) sucrose b) glucose c) ribose d) deoxyribose 7) An example of continuous variation is... a) eye colour b) height c) tongue rolling d) blood group 8) Discontinuous Variation can be represented using which type of graph? a) line graph b) histogram c) pie chart d) bar chart 9) If an organism is ADAPTED to its environment it is more likely to... a) survive b) reproduce c) pass on their genes d) all three 10) Which scientist first came up with the theory of "Survival of the fittest"? a) Louis Pasteur b) Charles Darwin c) Isaac Newton d) Marie Curie 11) Which of these species is extinct? a) Black Rhino b) Woolly Mammoth c) Giant Panda d) Orangutan 12) Which of these is an inherited disease? a) Cystic Fibrosis b) Covid-19 c) Diabetes d) Cancer

DNA, Inheritance and Natural Selection

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