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WorksheetsMain types of trait inheritance
Total questions: 20
Worksheet time: 12mins
In autosomal dominant inheritance
The disorder is observed in an equal number of females and males
The disorder is observed in an equal number of females and males who are homozygous for
the mutant gene
the disorder is not passed from one generation to the next generation
Both parents are obligate heterozygous carriers
Affected heterozygous mother and normal homozygous father
The genetic risk associated with an autosomal dominant disorder
is
50 %
100 %
25 %
0 %
Affected heterozygous mother and affected heterozygous father
The genetic risk associated with an autosomal dominant disorder
is
50 %
100 %
25 %
75 %
Affected homozygous mother and normal homozygous father
The genetic risk associated with an autosomal dominant disorder
is
50 %
100 %
25 %
75 %
In autosomal recessive inheritance
Father-to-son transmission does not occur
The disorder is observed in an equal number of females and males who are homozygous for
the mutant gene
the disorder is passed from one generation to the next generation
The disorder is observed in twice the number of females than males
Normal heterozygous mother and normal heterozygous father
The genetic risk associated with an autosomal recessive disorder
is
50 %
100 %
25 %
75 %
Affected homozygous mother and normal homozygous father.
In autosomal recessive disorders, the genetic risk for the normal children
being heterozygous carrier is
50 %
100 %
0 %
66 %
Affected homozygous mother and normal homozygous father.
The genetic risk associated with an autosomal recessive disorder
is
50 %
100 %
25 %
0 %
Normal heterozygous mother and normal heterozygous father
In autosomal recessive disorders, the genetic risk for the normal children
being heterozygous carrier is
33 %
100 %
50 %
66 %
Affected homozygous mother and normal heterozygous father
The genetic risk associated with an autosomal recessive disorder
is
50 %
100 %
25 %
75 %
Affected homozygous mother and normal heterozygous father
In autosomal recessive disorders, the genetic risk for the normal children
being heterozygous carrier is
33 %
100 %
50 %
66 %
Assuming that all alleles derive from a single locus, match the mating of an Aa father with an aa mother and their probabilities for genotypes in offspring.
1⁄2 AA, 1⁄2 aa
1⁄4 AA, 1⁄2 Aa,
1⁄4 aa
1⁄2 AA, 1⁄2 Aa
1⁄2 Aa, 1⁄2 aa
The major blood group locus in humans produces types A (genotypes AA or AO), B (genotypes BB or BO), AB (genotype AB), or O (genotype OO).
For parents who are type AB and type O, what are the possible blood types of their offspring?
Type AB child
Type B child
Type O or AB child
Type A or B child
The major blood group locus in humans produces types A (genotypes AA or AO), B (genotypes BB or BO), AB (genotype AB), or O (genotype OO).
For parents who are type A and type O, what are the possible blood types of their offspring?
Type A child
Type O child
Type O or AB child
Type A or O child
The major blood group locus in humans produces types A (genotypes AA or AO), B (genotypes BB or BO), AB (genotype AB), or O (genotype OO).
For parents who are type A and type B, what are the possible blood types of their offspring?
Type A or B
or AB child
Type O or A
or B child
Type O or A
or AB child
Type A or B
or AB
or O child
A Punnett square analysis of autosomal *************
inheritance.
(a)
A Punnett square analysis of autosomal *************
inheritance.
(a)
A Punnett square analysis of X-linked ************
inheritance.
(a)
A woman with III (B), Rh− blood group born a child with II (A) blood group. The child is diagnosed with hemolytic disease of newborn as a result of rhesus incompatibility. What blood group is the child’s father likely to have?
I (0), Rh+
II (A), Rh−
I (0), Rh−
II (A), Rh+
Heterozygous parents with А(II) and В(III) blood group according to the AB0 system have got a child. What is the probability that the child has 0(I) blood group?
25%
75%
0%
50%
