A pedigree diagram follows a recessive coat characteristic through three generations of rabbits. Which statements about what the diagram shows are true? Select all that apply.
The diagram states the pair of alleles carried by every rabbit
It records which rabbits show the characteristic and which do not✓Bonne réponse
An unshaded rabbit may still carry one allele for the characteristic✓Bonne réponse
An unshaded rabbit must carry two alleles for the other form
Explication
What is drawn is what could be observed in each animal, so the shading follows appearance and stops there. Because a single dominant allele is enough to hide a recessive one, an animal drawn unshaded may hold a recessive allele that no symbol on the diagram is able to reveal.