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Biology - Genetics

Blood typing, genetics, punnet squares, monohybrid/dihybrid crosses

QuestionAnswer
Incomplete dominance Neither allele is dominant or recessive towards the other, resulting in an intermediate form of both parent alleles. (RR=red, WW=white, cross results in RW=pink)
Codominance Both genes are expressed simultaneously, with part of both of the parent alleles present.
Type A blood includes genotypes: AA or AO
A and B are ___ over O, but A and B are ___ over each other. Dominant; not dominant
Because neither A nor B are dominant over each other, they are considered ___. Codominant
If type A was crossed with type O, you would need to complete ___ crosses in order to find the possible offspring of both parts of type A (AA and AO) 2
Antigen (agglutinogens) Proteins found on the surface of the RBC; blood type based on presence/absence of these; identified on diagrams by a circled letter
Antibodies (agglutinins) Present in the blood stream; used to protect you; builds up after birth; attach to foreign antigens (proteins that don't belong)
Type A blood produces ___ antigen. A
Type B blood produces ___ antigen. B
Type AB blood produces ___ antigen. AB
Type O blood produces ___ antigen. No (no antigens present)
Type A blood produces ___ antibodies. B
Type B blood produces ___ antibodies. A
Type AB blood produces ___ antibodies. None (universal recipient)
Type O blood produces ___ antibodies. A, B
Type A blood can receive type ___ blood. A, O
Type B blood can receive type ___ blood. B, O
Type AB blood can receive type ___ blood. Any type (AB, A, B, O)
Type O blood can receive type ___ blood. O (universal donor)
What is Rh? Rh is an antigen that determines positive or negative blood types.
If the RBC has the Rh antigen, then the blood type is ___. Positive
If the RBC does not have the Rh antigen, then the blood type is ___. Negative
Created by: mma129
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