Biology Quiz 11-3 And 14-1 Question Preview (ID: 34197)


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A dominant X-linked trait would be more common in males than in females.
a) True
b) False
c)
d)

In humans, the mother determines the sex of the offspring.
a) True
b) False
c)
d)

A carrier expresses the disease that they are carrying.
a) True
b) False
c)
d)

BB, is an example of a homozygous dominant genotype.
a) True
b) False
c)
d)

Bb, is an example of a heterozygous genotype.
a) True
b) False
c)
d)

bb, is an example of a homozygous recessive phenotype.
a) True
b) False
c)
d)

That girls has beautiful blue eyes, is an example of a phenotype.
a) True
b) False
c)
d)

An organisms phenotype is represented by 2 letters. i.e.. Bb.
a) True
b) False
c)
d)

Colorblindness is more common in males than in females because
a) the allele for colorblindness is recessive and located on the X chromosome
b) males who are colorblind have two copies of the allele for colorblindness
c) the allele for colorblindness is located on the Y chromosome
d) fathers pass the allele for colorblindness to sons only

People who are heterozygous for sickle cell disease are generally healthy because
a) they usually have some normal hemoglobin in their red blood cells
b) their abnormal hemoglobin usually doesn't cause their red blood cells to become sickle shaped.
c) they are resistant to malaria
d) they do not produce abnormal hemoglobin.

Organisms that have two identical dominant alleles for a particular trait are said to be
a) hybrid
b) heterozygous
c) homozygous
d) dominant

Organisms that have two identical alleles for a particular trait are said to be
a) heterozygous
b) homozygous recessive
c) homozygous dominant
d) hybrid

Organisms that have two identical recessive alleles for a particular trait are said to be
a) homozygous dominant
b) homozygous recessive
c) heterozygous
d) hybrids

Organisms that have two different alleles for a particular trait are said to be
a) heterozygous
b) homozygous recessive
c) hybrids
d) both A and C

In certain insects round wings (R) are dominant to pointed wings (r). Which cross will produce the greets number of genotypic and phenotypic variations?
a) Rr X RR
b) rr X rr
c) RR X RR
d) Rr X Rr

Many sex-linked genes are located on
a) both the X and Y chromosomes
b) the X chromosome only
c) the Y chromosome only
d) the autosomes

Which of the following is determined by multiple alleles?
a) Rh blood types
b) ABO blood groups
c) Huntington's disease
d) PKU

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