Question 1

An allele for a particular trait that is only expressed in the presence of a second copy of the same allele is called

Accepted Answer

A)  dominant.
B)  codominant.
C)  incompletely dominant.
D)  recessive.E) None of the above
F) A) and D)

Question 2

Mendel used the ______ to determine whether an individual with the dominant phenotype was homozygous or heterozygous for that trait.

Accepted Answer

A)  backcross
B)  testcross
C)  dihybrid cross
D)   F2 generationE) A) and B)
F) A) and D)

Question 3

Let P = purple flowers and p = white, and T = tall plants and t = dwarf.Of the 16 possible gamete combinations in the dihybrid cross between 2 double heterozygotes, how many would produce the phenotype white, tall?

Accepted Answer

A)  none
B)  1
C)  3
D)  9E) None of the above
F) C) and D)

Question 4

In modern terminology, Mendel's heredity "factors" are called

Accepted Answer

A)  DNA.
B)  chromosomes.
C)  genes.
D)  RNA.E) A) and B)
F) A) and C)

Question 5

Individuals that have 2 alleles for most gene loci are best described as

Accepted Answer

A)  haploid.
B)  diploid.
C)  dihybrid.
D)  homozygous.E) All of the above
F) B) and D)

Question 6

Let R = red pigment and r = no pigment.In carnations, RR offspring make a lot of red pigment, rr offspring make no pigment and Rr offspring make a small amount of red pigment, thus appearing pink.Pink carnations are therefore an example of

Accepted Answer

A)  codominance.
B)  incomplete dominance.
C)  epistasis.
D)  pleiotropy.E) None of the above
F) A) and D)

Question 7

The allelic make up of a cell or individual is referred to as its

Accepted Answer

A)  blueprint.
B)  genotype.
C)  phenotype.
D)  pedigree.E) A) and B)
F) None of the above

Question 8

Achondroplasia is a common form of dwarfism caused by an autosomal dominant mutation in the fibroblast growth factor receptor 3 (FGFR3)  gene.Two copies of the mutant gene are invariably fatal before or shortly after birth.If a person with achondroplasia marries a person of normal height, what is the probability that both their first child and second child will have achondroplasia?

Accepted Answer

A)  1/8
B)  1/4
C)  1/2
D)  1E) A) and D)
F) B) and D)

Question 9

A diploid individual carrying two different alleles at a given gene locus is called

Accepted Answer

A)  homologous.
B)  heterozygous.
C)  homozygous.
D)  polygenic.E) All of the above
F) C) and D)

Question 10

Mendel used the garden ___ plant for his studies on inheritance.

Accepted Answer

A)  lily
B)  carrot
C)  onion
D)  peaE) B) and C)
F) A) and D)

Question 11

A diploid individual carrying two identical alleles at a given gene locus is called

Accepted Answer

A)  homologous.
B)  heterozygous.
C)  homozygous.
D)  dihybrid.E) A) and D)
F) A) and B)

Question 12

If a single gene has 3 or more alternative forms, this is called

Accepted Answer

A)  pleiotropy.
B)  multiple alleles.
C)  epistasis.
D)  blending inheritance.E) All of the above
F) A) and B)

Exam 12: Patterns of Inheritance

Mendel used the garden ___ plant for his studies on inheritance.

Correct Answer
verified

Correct Answer
verified

Let P = purple flowers and p = white, and T = tall plants and t = dwarf.Of the 16 possible gamete combinations in the dihybrid cross between 2 double heterozygotes, how many would produce the phenotype white, tall?

Correct Answer
verified

In modern terminology, Mendel's heredity "factors" are called

Correct Answer
verified

A diploid individual carrying two different alleles at a given gene locus is called

Correct Answer
verified

An allele for a particular trait that is only expressed in the presence of a second copy of the same allele is called

Correct Answer
verified

If a single gene has 3 or more alternative forms, this is called

Correct Answer
verified

A diploid individual carrying two identical alleles at a given gene locus is called

Correct Answer
verified

Individuals that have 2 alleles for most gene loci are best described as

Correct Answer
verified

The allelic make up of a cell or individual is referred to as its

Correct Answer
verified

Let R = red pigment and r = no pigment.In carnations, RR offspring make a lot of red pigment, rr offspring make no pigment and Rr offspring make a small amount of red pigment, thus appearing pink.Pink carnations are therefore an example of

Correct Answer
verified

Mendel used the ______ to determine whether an individual with the dominant phenotype was homozygous or heterozygous for that trait.

Correct Answer
verified

Exam 12: Patterns of Inheritance

Mendel used the garden ___ plant for his studies on inheritance.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Let P = purple flowers and p = white, and T = tall plants and t = dwarf.Of the 16 possible gamete combinations in the dihybrid cross between 2 double heterozygotes, how many would produce the phenotype white, tall?

Correct AnswerverifiedShow Answer

In modern terminology, Mendel's heredity "factors" are called

Correct AnswerverifiedShow Answer

A diploid individual carrying two different alleles at a given gene locus is called

Correct AnswerverifiedShow Answer

An allele for a particular trait that is only expressed in the presence of a second copy of the same allele is called

Correct AnswerverifiedShow Answer

If a single gene has 3 or more alternative forms, this is called

Correct AnswerverifiedShow Answer

A diploid individual carrying two identical alleles at a given gene locus is called

Correct AnswerverifiedShow Answer

Individuals that have 2 alleles for most gene loci are best described as

Correct AnswerverifiedShow Answer

The allelic make up of a cell or individual is referred to as its

Correct AnswerverifiedShow Answer

Let R = red pigment and r = no pigment.In carnations, RR offspring make a lot of red pigment, rr offspring make no pigment and Rr offspring make a small amount of red pigment, thus appearing pink.Pink carnations are therefore an example of

Correct AnswerverifiedShow Answer

Mendel used the ______ to determine whether an individual with the dominant phenotype was homozygous or heterozygous for that trait.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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