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