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Trait Inheritance, 8.MS-LS3-4(MA)
Test Description: 8.MS-LS3-4(MA)
Instructions: Answer all questions to get your test result.
1) If your genotype is Aa, what trait would you show?
A
the recessive trait
B
the heterozygous trait
C
the mother's trait
D
the dominant trait
2) In a cross of two heterozygous parents, what is the probability of having homozygous recessive offspring?
A
100%
B
25%
C
50%
D
75%
3) A purple flower, PP, is crossed with a white flower, pp. What is the probability of getting offspring with white flowers?
A
100%
B
0%
C
50%
D
25%
4) A purple flower, PP, is crossed with a white flower, pp. What is the probability of getting offspring with purple flowers?
A
100%
B
50%
C
0%
D
25%
5) Which parent determines of genetic sex of offspring?
A
neither
B
the father
C
the mother
D
both
6) In a pedigree, ____ are used to represent males and ___ are used to represent femals
A
triangles, squares
B
squares, circles
C
circles, triangles
D
circles, squares
7) In x-linked recessive traits, who are usually the carriers?
A
trick question: there are no carriers
B
females
C
males
D
both can be carriers
8) If freckles are dominant over no freckles, which of the following genotypes would lead to no freckles
A
BB
B
bb
C
Bb
D
bB
9) The ___ determines the ___
A
genotype, phenotype
B
gene, allele
C
trait, gene
D
phenotype, genotype
10) How many chromosomes do we typically see in a human?
A
46 pairs of chromosomes
B
23 pairs of chromosomes
C
23 female chromosomes and 23 male chromosomes
D
23 individual chromosomes
*select an answer for all questions
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