Question

Each child to the right beling to a different set of parents bellow (1-3). Determine which child belong to each set of parents.

Answer 1

This exercise is about genetics:

We have three sets of parents and three children. They show us the phenotype (color) and the genotype (the letters that indicate the alleles).

G is the allele for dark color and is dominant, while g is the allele for light color and is recessive.

Let's take a look at each set of parents and the possible offspring:

0. Dark parent (Gg) x light parent (gg) - They have a 50/50 chance of dark (Gg) or light (gg) offspring.

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1. Dark parent (Gg) x dark parent (GG) - They can only have dark offspring, GG or Gg.

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2. Light parent (gg) x dark parent (GG) - They can only have dark heterozygous offspring (Gg).

This means that the children correspond to the parents in the following way:

• Dark child GG - Set 2 dark parent (Gg) x dark parent (GG)

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• Light child gg - Set 1 dark parent (Gg) x light parent (gg)

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• Dark child Gg - Set 3 light parent (gg) x dark parent (GG)