Medical Genetics - Chap 3 Updated Exam 2026
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In his monohybrid crosses, Mendel deduced that one trait was recessive because that
trait was ____.
a. present only in the parents
b. present in the F1 and in the F2
c. present only in the F2
d. not present in the F1 and did not reappear in the F2
e. not present in the F1 and reappeared in the F2 - ANSWERS-E
In a monohybrid cross with complete dominance, the F2 offspring should contain ____.
a. three different phenotypes and two different genotypes
b. three different phenotypes and three different genotypes
c. two different phenotypes and one genotype
d. two different phenotypes and two different genotypes
e. two different phenotypes and three different genotypes - ANSWERS-E
Alternate forms of a gene are called ____.
a. heterozygous
, b. alleles
c. homozygous
d. homologues
e. loci - ANSWERS-B
In a pedigree, a person whose symbol is filled in and who is associated with the Roman
numeral II is ____.
a. affected by the trait and is the second-oldest child in the family
b. affected by the trait and has an identical twin
c. not affected by the trait and in the second generation
d. not affected by the trait and is the second-oldest child in the family
e. affected by the trait and in the second generation - ANSWERS-E
The offspring (F1) resulting from the cross between two red flowered plants are 3/4 red
and 1/4 white. The most likely genotype of both red flowered parental plants (P1) is
____.
a. codominant recessive
b. homozygous recessive
c. heterozygous
d. incomplete dominant
e. incomplete recessive - ANSWERS-C
In humans, hair texture is an incompletely dominant trait. Curly is the dominant
genotype, wavy is heterozygous, and straight hair is recessive. What is the probable
phenotypic ratio for a cross between a man with wavy hair and a woman with curly hair?
a. All wavy hair
WITH Recent Newest Verified And Well Analyzed
Exam Questions (Actual Exam 2026-
2027)Correct Detailed & Verified ANSWERS
(100% Accurate Solutions) ALREADY GRADED
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Pass!!
In his monohybrid crosses, Mendel deduced that one trait was recessive because that
trait was ____.
a. present only in the parents
b. present in the F1 and in the F2
c. present only in the F2
d. not present in the F1 and did not reappear in the F2
e. not present in the F1 and reappeared in the F2 - ANSWERS-E
In a monohybrid cross with complete dominance, the F2 offspring should contain ____.
a. three different phenotypes and two different genotypes
b. three different phenotypes and three different genotypes
c. two different phenotypes and one genotype
d. two different phenotypes and two different genotypes
e. two different phenotypes and three different genotypes - ANSWERS-E
Alternate forms of a gene are called ____.
a. heterozygous
, b. alleles
c. homozygous
d. homologues
e. loci - ANSWERS-B
In a pedigree, a person whose symbol is filled in and who is associated with the Roman
numeral II is ____.
a. affected by the trait and is the second-oldest child in the family
b. affected by the trait and has an identical twin
c. not affected by the trait and in the second generation
d. not affected by the trait and is the second-oldest child in the family
e. affected by the trait and in the second generation - ANSWERS-E
The offspring (F1) resulting from the cross between two red flowered plants are 3/4 red
and 1/4 white. The most likely genotype of both red flowered parental plants (P1) is
____.
a. codominant recessive
b. homozygous recessive
c. heterozygous
d. incomplete dominant
e. incomplete recessive - ANSWERS-C
In humans, hair texture is an incompletely dominant trait. Curly is the dominant
genotype, wavy is heterozygous, and straight hair is recessive. What is the probable
phenotypic ratio for a cross between a man with wavy hair and a woman with curly hair?
a. All wavy hair
