Transcript Visual PPT Quiz 3

Visual PPT Quiz 3
Punnett Square
Genetics
Question #1:
• If two parents are
heterozygous for a
genetically inherited
dominant trait, what is
the probability that
they will have a child
together who has this
trait in his or her
phenotype?
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A. 25%
B. 50%
C. 75%
D. 100%
Question #2:
• If two parents are
homozygous for a
genetically inherited
recessive trait, what is
the probability that
they will have a child
who does not have this
trait in his or her
phenotype?
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A. 0%
B. 25%
C. 50%
D. 100%
Question #3: A cross of a black chicken (BB) with a
white chicken (WW) produce all speckled offspring
(BW). This type of inheritance is known as ..
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A. polygenic inheritance
B. multiple alleles
C. Multiple dominance
D. Incomplete dominance
Question #4:According to the dihybrid cross below,
what proportion of peas would be green and smooth?
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A. 9 / 16
B. 1 / 4
C. 3 / 8
D. 1 / 16
Question #5:What is the probability that a hamster will
have black, fine hair?
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A. 2 / 16 ( 1/8)
B. 4 /16 (1/4)
C. 1/16
D. 8/16 ( 1 / 2)
Question #6: A man has blood type A. His wife has blood type B.
Their children can have blood type:
• (a) AB
(b) A or B
(c) A or B or AB
(d) A or B or AB or O
Question #7:
• Tracey has three brothers.
One of Tracey's brothers
has sickle-cell anemia, a
disease caused by a
recessive allele. She, her
parents, and the other
children do not have it. If
Tracey's parents have
another child, what is the
chance that the child will
have sickle-cell anemia?
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A. 0%
B. 25%
C. 50%
D. 75%
Question #8:
• In pepper plants, the
allele for hot flavor (H)
is dominant to the allele
for mild flavor
(h). A farmer crosses a
homozygous dominant
plant with a recessive
(mild) plant.
What percentage of the
offspring from this cross
will have hot flavor?
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A. 25%
B. 50%
c. 75%
d. 100%
Question #9: What is the phenotype ratio for the
offspring in this Punnett Square?
• A)9 round yellow; 3
round green: 3 wrinkled
yellow: 9 wrinkled green
• B)9 round yellow; 3
round green: 3 wrinkled
yellow: 1 wrinkled green
• C)3 round yellow; 9
round green: 1 wrinkled
yellow: 3 wrinkled green
• D)3 round yellow; 3
round green: 3 wrinkled
yellow: 3 wrinkled green
Question #10: How should the top row of the Figure
read?
• A)mMxX, mMxx,
mmxX, mmxx
• B)MMxX, MMxx,
MmxX, Mmxx
• C)mMXX, mMXx,
mmXX, mmXx
• D)MMXX, MMXx,
MmXX, MmXx