WorksheetsCh 15 Genetics
Total questions: 20
Worksheet time: 12mins
Examine the pedigree chart . Which of the following individuals is affected by this trait?
II- 2
IV- 1
III-3
II-5
How many children did I-1 and I-2 have?
2
3
4
6
How many daughters did I-1 and I-2 have?
1
2
3
4
Who is affected by this trait?
Females only
Males only
Both Females and Males
What kind of inheritance pattern is this pedigree showing?
Recessive Trait
Dominant Trait
Codominant Trait
Multiple Alleles
Colorblindness is a sex linked disorder. Ava is heterozygous for the colorblindness gene. Her husband Mario has normal vision. What is Mario's genotype?
XY
XbY
XBY
XYb
Colorblindness is a sex linked disorder. Ava is heterozygous for the colorblindness gene. Her husband Mario has normal vision. What is Ava's genotype?
XBXB
XbXb
XX
XBXb
Colorblindness is a sex linked disorder. Ava is heterozygous for the colorblindness gene. Her husband Mario has normal vision. If they have children what percent of their children will be color blind? Hint: set up a punnett square
0%
25%
50%
100%
Alice has A blood and her husband Mark has B blood. Their first child , Amanda, has type O blood. Their second child has Alex, has type AB blood. What is Mark's genotype?
BB
AB
IAIB
IBi
Alice has A blood and her husband Mark has B blood. Their first child , Amanda, has type O blood. Their second child has Alex, has type AB blood. What is Alice's genotype?
AA
IAi
AB
IAIA
If the man with type O blood and the woman with type AB blood had children, what would the possible genotypes of their offspring be?*Hint make a punnett square
1/2 Type O and 1/2 type AB
1/2 Type A, 1/2 type B
4/4 Type AB
1/4 Type O, 1/4 Type A, 1/4 Type B, 1/4 Type AB
A woman has type AB blood. What is her genotype.
oo
IAIB
ii
AB
A man has type O blood. What is his genotype?
oo
IoIo
ii
IAi
Which parental pair could produce females with colorblindness?
heterozygous normal visioned mother and father with colorblindness
heterozygous normal visioned mother and father with normal visiond.
homozygous normal vision mother and father with colorblindness
mother with color blindness and normal vision father
A common genetic disorder characterized by bent and twisted red blood cells is
cystic fibrosis
hemophilia
sickle cell disease
muscular dystrophy
Hemophilia is a genetic disorder that is
sex linked
sex-influenced
fairly common
more common in women than men
Most sex linked genes are found on the
Y chromosome
O chromosome
YY chromosome
X chromosome
The failure of chromosomes to separate during meiosis is called
x chromosome inactivation
nondisjunction
hybridization
PCR
A normal human diploid zygote contains a full set of
23 chromosomes
46 chromosomes
44 chromosomes
XXY chromosomes
An example of a trait that is determined by multiple alleles is
ABO blood types
Huntington’s disease
down syndrome
hemophilia
