Chapter 23 - Characteristics of Offspring

Question	Answer
What are the symbols used for pedigrees	Image: Pedigree Key (binary/octet-stream)
What is the mode inheritance used in this pedigree? Image: Recessive Pedigree (binary/octet-stream)	Autosomal Recessive
What mode of inheritance is used in this pedigree? Image: Dominant Pedigree (binary/octet-stream)	Autosomal Dominant
What is probability and how is it expressed?	The chance that something will happened. Usually expressed as % or decimal
How can you tell if a pedigree shows a dominant trait?	The trait never skips a generation
How can you tell if a pedigree shows a recessive trait?	- The trait skips a generation - Doesn't get passed from father to son - People without the characterisitc don't have a child with the characteristic
What kind of inheritance pattern does Huntington's disease have?	Autosomal dominant
What kind of inheritance pattern does achondroplasia (dwarfism) have?	Autosomal dominant
What kind of inheritance pattern does Phenylketonuria (PKU) have?	X-linked recessive
What is an example of co-dominant inheritance	Sickle-cell anaemia
What is genetic counselling?	People that are concerned of an inherited disorder occuring in their children get genetic counselling
What is DNA profiling?	The creation of bands through the use of electrophoresis that can be used to traace ancestry and in forensic science
Who is the father of the child? Image: Dna Profiling (binary/octet-stream)	Dad 3

Resource summary

	Created by Zita Wormuth over 6 years ago