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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 dominant trait
B
the recessive trait
C
the mother's trait
D
the heterozygous trait
2) In a cross of two heterozygous parents, what is the probability of having homozygous recessive offspring?
A
75%
B
25%
C
100%
D
50%
3) A purple flower, PP, is crossed with a white flower, pp. What is the probability of getting offspring with white flowers?
A
0%
B
50%
C
100%
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
50%
B
100%
C
0%
D
25%
5) Which parent determines of genetic sex of offspring?
A
both
B
the father
C
the mother
D
neither
6) In a pedigree, ____ are used to represent males and ___ are used to represent femals
A
triangles, squares
B
circles, triangles
C
circles, squares
D
squares, circles
7) In x-linked recessive traits, who are usually the carriers?
A
both can be carriers
B
trick question: there are no carriers
C
males
D
females
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
trait, gene
C
gene, allele
D
phenotype, genotype
10) How many chromosomes do we typically see in a human?
A
23 individual chromosomes
B
23 female chromosomes and 23 male chromosomes
C
23 pairs of chromosomes
D
46 pairs of chromosomes
*select an answer for all questions
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