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Biology Quiz 11-3 And 14-1
Test Description: Genetics
Instructions: Answer all questions to get your test result.
1) A dominant X-linked trait would be more common in males than in females.
A
False
B
True
2) In humans, the mother determines the sex of the offspring.
A
False
B
True
3) A carrier expresses the disease that they are carrying.
A
False
B
True
4) BB, is an example of a homozygous dominant genotype.
A
True
B
False
5) Bb, is an example of a heterozygous genotype.
A
True
B
False
6) bb, is an example of a homozygous recessive phenotype.
A
False
B
True
7) That girls has beautiful blue eyes, is an example of a phenotype.
A
True
B
False
8) An organisms phenotype is represented by 2 letters. i.e.. Bb.
A
True
B
False
9) Colorblindness is more common in males than in females because
A
the allele for colorblindness is located on the Y chromosome
B
fathers pass the allele for colorblindness to sons only
C
males who are colorblind have two copies of the allele for colorblindness
D
the allele for colorblindness is recessive and located on the X chromosome
10) 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
they are resistant to malaria
C
they do not produce abnormal hemoglobin.
D
their abnormal hemoglobin usually doesn't cause their red blood cells to become sickle shaped.
11) Organisms that have two identical dominant alleles for a particular trait are said to be
A
dominant
B
homozygous
C
heterozygous
D
hybrid
12) Organisms that have two identical alleles for a particular trait are said to be
A
homozygous dominant
B
hybrid
C
heterozygous
D
homozygous recessive
13) Organisms that have two identical recessive alleles for a particular trait are said to be
A
homozygous recessive
B
heterozygous
C
homozygous dominant
D
hybrids
14) Organisms that have two different alleles for a particular trait are said to be
A
heterozygous
B
hybrids
C
both A and C
D
homozygous recessive
15) 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
16) Many sex-linked genes are located on
A
the autosomes
B
the X chromosome only
C
both the X and Y chromosomes
D
the Y chromosome only
17) Which of the following is determined by multiple alleles?
A
PKU
B
Rh blood types
C
Huntington's disease
D
ABO blood groups
*select an answer for all questions
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