3.16 - Outcomes and Pedigree Analysis Flashcards
What are monohybrid crosses used for?
Monohybrid crosses (Punnett squares) are used to analyze the probabilities of particular outcomes.
What is pedigree analysis used for?
Pedigree analysis is used to analyze the probabilities of particular outcomes.
What does C/c represent in cystic fibrosis genetics?
C/c represents the normal (C) and defective (c) alleles for the cystic fibrosis gene.
What type of gene is cystic fibrosis?
The cystic fibrosis gene is autosomal recessive.
We can see that the risk of having both defective alleles (CC) is one out of four, or 1⁄4 (25%).
What is codominance?
Codominance is when two dominant alleles can be expressed together in the same individual.
What are multiple alleles?
Multiple alleles refer to the presence of three or more alleles at the same locus.
What is an example of codominance and multiple alleles?
The ABO blood group system is an example where alleles A, B, and O can be expressed at the same locus.
What are the possible blood types from the ABO blood group system?
The possible blood types are A, B, AB, and O.
What blood type results from A and O alleles?
Type A blood results from A and O alleles.
What blood type results from A and B alleles?
Type AB blood results from A and B alleles, which are codominantly expressed.
What blood type results from A and A alleles?
Type A blood results from A and A alleles.
What blood type results from B and B alleles?
Type B blood results from B and B alleles.
What blood type results from O and O alleles?
Type O blood results from O and O alleles.
How common is Type O blood compared to A or B blood types?
Type O blood is significantly more rare than types involving A or B alleles.
