WorksheetsSex-linked Inheritance Progress Check
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
What percentage of the offspring will have this recessive disease?
a)
0%
b)
25%
c)
50%
d)
75%
2.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
3.
Looking at this pedigree, how many female family members are carriers?
a)
1
b)
3
c)
10
d)
7
4.
Looking at this pedigree, how many family members have the disease?
a)
4
b)
7
c)
All
d)
None
5.
What is the purpose of using a pedigree?
a)
To determine the average age of a family
b)
To find out family histories and medical records
c)
To find out whether a couple can have a boy or a girl
d)
To trace the inheritance of a certain trait through generations
6.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
7.
How many PAIRS of sex chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
8.
I have 2 X chromosomes. What am I?
a)
Male
b)
Female
9.
I have 1 X chromosome and 1 Y chromosome. What am I?
a)
Male
b)
Female
10.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
100 %
