The following pedigree is for BRAC2 mutation on chromosome 1…

The following pedigree is for BRAC2 mutation on chromosome 13. Based on your understanding of inheritance, is it dominant or recessive. What is the probability the III-1 (arrow) inherited the BRAC2 mutation? Note: filled in circles represent known cancer victims with the BRAC2 allele. Does inheriting BRAC2 non-functional allele actually cause cancer? Justify your answer.  

In humans, a major gene controls a characteristic of red blo…

In humans, a major gene controls a characteristic of red blood cells called the ABO blood type.  Use the symbols IA, IB and i to write the possible genotypes of: A. A woman with Type A blood ________________ B. A man with Type AB blood ________________ C. A man with Type O blood ________________ D. What kind of antibodies (immune cell proteins) does a person with Type B blood have? E. A woman with type O blood has a child with type A blood. What are the possible blood types of the father?