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WorksheetsBiology - Karyotypes/Pedigrees
Total questions: 47
Worksheet time: 2hrs 53mins
Name
Class
Date
1.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
2.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
3.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
4.
How many boys did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
5.
How many girls did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
6.
In the second generation-how many people have the disease or display the physical trait?
a)
2
b)
4
c)
5
d)
6
7.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
8.
How many individuals are there in the 3rd generation?
a)
2
b)
3
c)
4
d)
6
9.
How many kids did individual one and two (from the second generation) have?
a)
2
b)
3
c)
4
d)
6
10.
How many people in this whole pedigree have the trait/disease?
a)
2
b)
3
c)
4
d)
6
11.
Lisa has two grandmothers in this picture.
a)
Mona and Jackie
b)
Marge and Mona
c)
Selma and Jackie
d)
Patty and Selma
12.
How many girls in this family express this recessive disorder?
a)
4
b)
5
c)
6
d)
7
13.
What is the genotype of both great-grandsons? (Individuals 13 and 16)
a)
AA
b)
Aa
c)
A_
d)
aa
14.
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
a)
DNA
b)
protein
c)
RNA
d)
glucose nucleic acid (GNA)
15.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
16.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
17.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
18.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
19.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
20.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
21.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
22.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
23.
Aa is
a)
homozygous
b)
heterozygous
24.
Aa is
a)
homozygous
b)
heterozygous
25.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
26.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
27.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
28.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
29.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
30.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
31.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
32.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
33.
How many chromosomes are shown in a normal human karyotype?
a)
2
b)
12
c)
25
d)
46
34.
Photograph of chromosomes grouped in ordered pairs
a)
pedigree
b)
Punnett Square
c)
Venn Diagram
d)
Karyotype
35.
Chromosome that is not a sex chromosome
a)
Chromosome
b)
Autosome
c)
Sex Chromosome
d)
Homologous pair
36.
Error in meiosis in which homologous chromosomes fail to separate
a)
nondisjunction
b)
sex-linked recessive
c)
autosomal dominant
d)
autosomal recessive
37.
Chart that shows the relationships within a family
a)
Pedigree
b)
Karyotype
c)
T chart
d)
Key
38.
What percentage of human egg cells carries an X chromosome?
a)
0%
b)
25%
c)
50%
d)
100%
39.
Which of the following genetic abbreviations denotes a male human?
a)
23,XX
b)
23,XY
c)
46,XX
d)
46,XY
40.
A person with Down syndrome has ______ copies of chromosome 21.
a)
1
b)
2
c)
3
d)
4
41.
If a couple has five boys, the probability that the next child will be a boy is _______.
a)
0%
b)
25%
c)
50%
d)
75%
42.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
43.
What do half colored symbols represent?
a)
The individual is a carrier.
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
44.
A genetic disorder is an abnormal condition that a person inherits through genes or chromosomes?
a)
True
b)
False
45.
Some genetic disorders are caused by what?
a)
alleles
b)
Mutations in the DNA of genes
c)
Phenotype
d)
Genotype
46.
What disease affects hemoglobin a protein in red blood cells that carry oxygen?
a)
Down Syndrome
b)
Cystic Fibrosis
c)
Sickle-Cell
d)
Hemophilia
47.
Because hemophilia is a sex-linked disorder, it occurs more frequently in females than males?
a)
True
b)
False
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