Transcript Genetics Quiz 1 - KATMAN SCIENCE

Genetics Quiz 1
Ch. 11
Q1: Black fur(B) in guinea pigs is dominant over
white fur(b). Find the probability of a black
offspring in a cross: bb x bb.
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A. 0%
b. 25%
c.50%
d.75%
e.100%
Q2. Black fur(B) in guinea pigs is dominant over white fur(b).
Find the probability of an offspring with the same phenotype
as its parents in a cross between a homozygous black and a
heterozygous black guinea pig.
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A. 0%
B. 25%
C. 50%
D.75%
E. 100%
Q3. If two people who are both carriers for a genetically
inherited fatal recessive disease decide to become parents,
what will be the odds that their children will also be carriers?
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a) 1 out of 4
b) 2 out of 4
c) 3 out of 4
d) 4 out of 4
e) none of these
Q4. Organisms that have two different alleles for
a particular trait are said to be...
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A. Hybird
B. Homozygyous
C. Heterozygous
D. Dominant
E. really strange
Q5. 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. Incomplete Dominance
B. Polygenic Inheritance
C. Recessive inheritance
D. Multiple Alleles
E. none seem right
Q6. 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. 3/16
D. 1/16
E. 5/16
Q7. 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)
E. 3/16
Q8. 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%
E. not enough information
Q9. 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%
E. none of these seem correct
Q10. Could a man with type B blood and a woman with type AB
produce a child with type O blood? Draw the Punnett squares.Yes or
no?
• HINT: You will need to draw 2 punnett squares
for the dad’s genotypes??
• A = yes, B = no on clicker