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  1. Which of the following is a multiple allelic trait?
APea plant seed shape
BPink snapdragon flowers
CRabbit fur color
DNone of the above


  1. Which of the following is a possible genotype for a person with B blood?
AIBIo
BIBIB
Cboth a and b
DNone of the above

  1. Albinism is an example of
APleiotropy.
BEpistasis.
CSex-linked traits.
DNone of the above


  1. An example of epistasis is
ABaldness covering up a widow's peak hairline.
BRabbits with multiple colors of fur.
CFrizzle trait" in chickens.
DNone of the above


  1. _______ may differ in their size, depending on the species of the organism they are from.
AAutosomes
BSex chromosomes
CHomologous chromosomes
Dnone of the above

  1. A typical human male has the following sex chromosome pair.
AYY
BXX
CXY
DOY


  1. _____ is when a heterozygote expresses both homozygous phenotypes simultaneously, rather than expressing an intermediate phenotype.

AComplete dominance
BIncomplete dominance
CCodominance
Dnone of the above

  1. Which of the following blood types is dominant?
AA
BB
CO
Dboth A and B

  1. ______ is a condition that occurs when an individual has only one of a particular chromosome.
ATrisomy
BMonosomy
CPleiotropy
DEpistasis


  1. Autosomal, monosomy, and trisomy in humans is in most cases
Alethal.
Bcommon.
Cfavorable.
Dnone of the above