In the diagram shown, are represented by the squares. a) males b) females c) unrelated offspring d) heterozygous offspring

The right answer is A) males.

Medicine and science make abundant use of plant metaphors to represent evolutions or links, as for example in the phylogenetic tree that schematizes kinship relations between groups of living beings. The family tree is also used in genetics to represent or diagnose inherited traits or diseases. The graphic conventions are then significantly different (these are international symbols), including:

* women by circles and men are represented by squares

* the symbols representing the individuals "affected", that is to say carriers of the gene studied, have a plain solid background

* the symbols of deceased persons are crossed out

* consanguineous marriages are represented by two solid lines.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.