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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
True
B
False
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
True
B
False
4) BB, is an example of a homozygous dominant genotype.
A
True
B
False
5) Bb, is an example of a heterozygous genotype.
A
False
B
True
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
the allele for colorblindness is recessive and located on the X chromosome
C
males who are colorblind have two copies of the allele for colorblindness
D
fathers pass the allele for colorblindness to sons only
10) People who are heterozygous for sickle cell disease are generally healthy because
A
their abnormal hemoglobin usually doesn't cause their red blood cells to become sickle shaped.
B
they usually have some normal hemoglobin in their red blood cells
C
they are resistant to malaria
D
they do not produce abnormal hemoglobin.
11) Organisms that have two identical dominant alleles for a particular trait are said to be
A
homozygous
B
hybrid
C
heterozygous
D
dominant
12) Organisms that have two identical alleles for a particular trait are said to be
A
homozygous dominant
B
hybrid
C
homozygous recessive
D
heterozygous
13) Organisms that have two identical recessive alleles for a particular trait are said to be
A
heterozygous
B
homozygous dominant
C
homozygous recessive
D
hybrids
14) Organisms that have two different alleles for a particular trait are said to be
A
homozygous recessive
B
both A and C
C
heterozygous
D
hybrids
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 Y chromosome only
B
the autosomes
C
the X chromosome only
D
both the X and Y chromosomes
17) Which of the following is determined by multiple alleles?
A
ABO blood groups
B
PKU
C
Huntington's disease
D
Rh blood types
*select an answer for all questions
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