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Genetics 3
Test Description: Chapter 10 & 11 Genetics 3
Instructions: Answer all questions to get your test result.
1) Two healthy parents produce a child with a genetic disorder. What is the best explanation for this?
A
both parents carried the recessive gene
B
there was a genetic mutation
C
crossing over occurred
D
it was caused by the babies environment
2) Which genetic disorder can be identified by a karyotype?
A
Sickle cell anemia
B
Down's Syndrome
C
Hemophilia
D
Tay-Sachs Disease
3) A heterozygous Blood type A man marries a heterozygous Blood type B woman. What is the chance thier child will be type AB
A
50%
B
75%
C
0%
D
25%
4) Which are examples of sex-linked traits
A
red-green color blindness
B
hemophilia
C
hemophilia & red-green color blindness
D
sickle cell anemia
5) In a pedigree, a circle represents a
A
child
B
parent
C
male
D
female
6) In a pedigree, roman numerals represent
A
years
B
generations
C
siblings
D
marriages
7) In a predigree, a carrier is represented by a
A
half shaded circle or square
B
non-shadded circle or square
C
full shaded circle or square
D
a triangle
8) A karyotype that contains an extra chromosome enhibits what genetic disorder
A
monosomy
B
addition
C
triploidy
D
trisomy
9) A karyotype that is missing a chromosome enhibits what genetic disorder
A
triploidy
B
trisomy
C
deletion
D
monosomy
10) Meiosis results in
A
4 diploid cells
B
2 diploid cell
C
4 haploid cells
D
2 halpoid cells
*select an answer for all questions
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