Trait Inheritance, 8.MS-LS3-4(MA) Question Preview (ID: 53478)


8.MS-LS3-4(MA). TEACHERS: click here for quick copy question ID numbers.

The ___ determines the ___
a) trait, gene
b) phenotype, genotype
c) genotype, phenotype
d) gene, allele

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

In x-linked recessive traits, who are usually the carriers?
a) females
b) males
c) both can be carriers
d) trick question: there are no carriers

In a pedigree, ____ are used to represent males and ___ are used to represent femals
a) circles, squares
b) circles, triangles
c) squares, circles
d) triangles, squares

Which parent determines of genetic sex of offspring?
a) the mother
b) neither
c) the father
d) both

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) 25%
d) 0%

A purple flower, PP, is crossed with a white flower, pp. What is the probability of getting offspring with white flowers?
a) 100%
b) 50%
c) 25%
d) 0%

In a cross of two heterozygous parents, what is the probability of having homozygous recessive offspring?
a) 25%
b) 50%
c) 75%
d) 100%

If your genotype is Aa, what trait would you show?
a) the recessive trait
b) the dominant trait
c) the heterozygous trait
d) the mother's trait

How many chromosomes do we typically see in a human?
a) 23 pairs of chromosomes
b) 46 pairs of chromosomes
c) 23 female chromosomes and 23 male chromosomes
d) 23 individual chromosomes

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