Genetics 3 Question Preview (ID: 161)
Chapter 10 & 11 Genetics 3.
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Two healthy parents produce a child with a genetic disorder. What is the best explanation for this?
a) it was caused by the babies environment
b) crossing over occurred
c) there was a genetic mutation
d) both parents carried the recessive gene
Which genetic disorder can be identified by a karyotype?
a) Tay-Sachs Disease
b) Hemophilia
c) Down's Syndrome
d) Sickle cell anemia
A heterozygous Blood type A man marries a heterozygous Blood type B woman. What is the chance thier child will be type AB
a) 0%
b) 25%
c) 50%
d) 75%
Which are examples of sex-linked traits
a) hemophilia
b) sickle cell anemia
c) hemophilia & red-green color blindness
d) red-green color blindness
In a pedigree, a circle represents a
a) female
b) male
c) child
d) parent
In a pedigree, roman numerals represent
a) marriages
b) generations
c) siblings
d) years
In a predigree, a carrier is represented by a
a) a triangle
b) non-shadded circle or square
c) half shaded circle or square
d) full shaded circle or square
A karyotype that contains an extra chromosome enhibits what genetic disorder
a) triploidy
b) trisomy
c) monosomy
d) addition
A karyotype that is missing a chromosome enhibits what genetic disorder
a) monosomy
b) trisomy
c) triploidy
d) deletion
Meiosis results in
a) 2 diploid cell
b) 2 halpoid cells
c) 4 haploid cells
d) 4 diploid cells
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