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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
crossing over occurred
B
it was caused by the babies environment
C
there was a genetic mutation
D
both parents carried the recessive gene
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
0%
C
75%
D
25%
4) Which are examples of sex-linked traits
A
red-green color blindness
B
hemophilia & red-green color blindness
C
sickle cell anemia
D
hemophilia
5) In a pedigree, a circle represents a
A
parent
B
male
C
child
D
female
6) In a pedigree, roman numerals represent
A
generations
B
years
C
marriages
D
siblings
7) In a predigree, a carrier is represented by a
A
half shaded circle or square
B
full shaded circle or square
C
non-shadded circle or square
D
a triangle
8) A karyotype that contains an extra chromosome enhibits what genetic disorder
A
addition
B
monosomy
C
trisomy
D
triploidy
9) A karyotype that is missing a chromosome enhibits what genetic disorder
A
monosomy
B
triploidy
C
deletion
D
trisomy
10) Meiosis results in
A
2 halpoid cells
B
4 haploid cells
C
4 diploid cells
D
2 diploid cell
*select an answer for all questions
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