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Basic Punnett Squares III
Test Description: Do basic one factor cross Punnet squares using dominant and recessive traits.
Instructions: Answer all questions to get your test result.
1) What do we call a segment of DNA that codes for a protein?
A
chromosome
B
codon
C
gene
D
allele
2) What do we call the different forms of the same gene?
A
recessive
B
dominant
C
gametes
D
alleles
3) Homozygous recessive crossed with heterozygous. What is the phenotypic ratio of the offspring?
A
3:1
B
1:0
C
1:2:1
D
1:1
4) What do we call the genetic makeup of an organism?
A
traits
B
genetics
C
phenotype
D
genotype
5) What do we call the physical characteristics of an organism
A
genotype
B
genetics
C
phenotype
D
traits
6) What is the separation of alleles during gamete formation called? Results in receiving only on allele per parent.
A
genetics
B
probability
C
independent assortment
D
segregation
7) What is a specialized cell involved in sexual reproduction?
A
gene
B
codon
C
gamete
D
allele
8) The random shuffling of genes during gamete formation without one gene affecting another is called?
A
segregation
B
probability
C
genetics
D
independent assortment
9) Homozygous dominant and heterozygous. What is the phenotypic ratio of their offspring?
A
1:1
B
3:1
C
1:2:1
D
1:0
10) Homozygous dominant crossed with homozygous recessive. What is the phenotypic ratio of the offsping?
A
1:2:1
B
1:0
C
1:1
D
3:1
*select an answer for all questions
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