would show the
blood group as AB. This is because of
(a) pleiotropy
(b) codominance (c) segregation (d)incomplete
dominance
Answer:
(b) A B 0 blood grouping in humans
is an example of codominance. A B G blood groupsare controlled by gene
. Gene has three alleles
, 
and 
and 
are the dominant
alleles. When and are
present together, both express equally and produce the surface antigens A and
B, whereas I is the recessive allele and does not produce any antigen.
Pleiotropy referred the genetic effect
of a single gene on multiple phenotypic traits. Incomplete dominance is a
genetic term in which does not completely dominate another allele.
Segregation is the separation of
allele during the process of gametogenesis. This is the basis of reappearance
of recessive character in F2generation.
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