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Genetics
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1) Two pink-flowering plants are crossed.The offspring percentages are 25% red, 25% white and 50% pink. What pattern of inheritance does flower color in these flowers follow?
A
Incomplete dominance
B
Multiple alleles
C
Codominance
D
Polygenic traits
2) Most sex-linked genes in humans are found on the
A
X Chromosome
B
XX Chromosome
C
Y Chromosome
D
XY Chromosome
3) A situation in which a gene has more than two alleles is known as
A
codominance
B
multiple alleles
C
polygenic dominance
D
incomplete dominance
4) Colorblindness is a
A
sex-linked trait
B
Y-linked trait
C
defect in proteins for blood clotting
D
seen in homomzygous dominant individuals
5) Which of the following is not considered simple Mendelian genetics?
A
polygenic traits
B
law of independent assortment
C
law of segregation
D
recessive/dominant traits
6) If a characteristic is X-linked it
A
is always fatal
B
occurs mostly in males
C
occurs mostly in females
D
isn't any different than a normal allele
7) If you set up a 4 box punnett square for Hh x Hh what type of phenotypic ratio would you find?
A
1:2:1
B
4:0
C
3:1
D
1:1:1:1
8) If you set up a 4 box punnett square for Hh x Hh what type of genotypic ratio would you find?
A
1:2:1
B
3:1
C
4:0
D
1:1:1:1
9) If you set up a 4 box punnett square for Hh x Hh what type of genotypes would you find?
A
1/2 HH, 1/2 hh
B
all hh
C
all HH
D
1/4 HH, 1/2 Hh, 1/4 hh
10) If you set up a 4 box punnett square for Hh x Hh what type of phenotypes would you find?
A
100% dominant
B
75% dominant and 25% recessive
C
100% recessive
D
50% dominant and 50% recessive
*select an answer for all questions
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