Pedigree Analysis Problems

Analyze each of the following family trees to see if it is possible that the trait could be dominant, recessive, or sex-linked. Answer yes or no to each question. If you answered no, then draw a line from the question to the impossible offspring and circle it. Use the following information to analyze the pedigrees:

For dominant and recessive traits the 1 impossibility is _________________________.

For sex-linked traits their are four impossibilities:

1) _______________________________________________________.

2) _______________________________________________________.

3) _______________________________________________________.

4) _______________________________________________________.

	Could this trait be Dominant? Could this trait be Recessive? Could this trait be Sex-linked?
	Could this trait be Dominant? Could this trait be Recessive? Could this trait be Sex-linked?
	Could this trait be Dominant? Could this trait be Recessive? Could this trait be Sex-linked?
	Could this trait be Dominant? Could this trait be Recessive? Could this trait be Sex-linked?
	Could this trait be Dominant? Could this trait be Recessive? Could this trait be Sex-linked?