Biology 0610 · IGCSE · Monohybrid inheritance

Monohybrid inheritance — practice question

(a)[2]

The list below contains some claims about variation. Put ticks (✓) in the boxes to show which claims are correct. Variation is discontinuous when only a small number of phenotypes occur and there are no intermediates. Variation refers to similarities among individuals from different species. Variation is caused only by genes. Variation may be produced by mutation.

(b(i))[2]

Complete the steps a farmer should follow to produce fava bean plants that are able to tolerate drought. Step 1 Choose plants with the greatest drought tolerance. Step 2 ................................................ Step 3 ................................................

(b(ii))[1]

State the name of the process used by the fava bean farmer to produce drought-tolerant plants.

(c(i))[1]

State the genus of the plant in Fig. 6.1.

(c(ii))[3]

Complete the Punnett square and work out the phenotypic ratio of the offspring plants. Finish the Punnett square provided, then state: phenotypic ratio of the offspring plants ........................ flowers with black spots : ........................ flowers with yellow spots

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: variation is discontinuous when only a small number of phenotypes occur and there are no intermediates

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