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Genetics Quiz

Total questions: 71

Worksheet time: 2hrs 22mins

Name
Class
Date
1.

If there are 2 plants with the genotypes TT and Tt then the plants would have

a)

the same phenotype

b)

different phenotypes

2.

If an organism has 2 identical alleles for a particular trait then it is

a)

heterozygous

b)

homozygous

c)

hybrid

3.

A pea plant that has 2 different alleles for a trait means they are

a)

homozygous

b)

heterozygous

c)

purebred

4.

How many recessive alleles for a trait must an organism inherit in order to show that trait?

a)

1

b)

2

c)

3

d)

4

5.

What does the law of dominance state?

a)

all alleles are recessive

b)

no alleles are dominant

c)

some alleles are dominant and some are recessive

6.

What is an allele?

a)

same forms of a gene

b)

different forms of a gene

c)

3 letters

7.

If a Heterozygous Rr pea plant is crossed with a Heterozygous Rr pea plant, what would be the percentage that the offspring will be recessive rr?

a)

50%

b)

75%

c)

25%

8.

What is an example of a heterozygous genotype?

a)

AA

b)

aa

c)

AAaa

d)

Aa

9.
In a certain species of animal, black fur (B) is dominant over tan fur (b).  If two heterozygous parents were crossed what percentage of the offspring would be Homozygous dominant?
a)
0%
b)
25%
c)
50%
d)
75%
10.

Round seeds (R) are dominant to wrinkled seeds (r) in pea plants. If two heterozygous parents are crossed, what is the genotypic ratio?

a)

1:2:2

b)

2:2

c)

3:1

d)

1:2:1

11.

Sickle cell anemia is an autosomal recessive disorder that affects the ability of blood to clot. If a woman with sickle cell anemia has children with a man who is heterozygous for sickle cell, what are the chances their child will have the disorder?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

12.
What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift 
13.
Which of the following would result in a frameshift mutation?
a)
Insertions only
b)
Substitution only
c)
Deletion only
d)
Insertions and Deletions
14.

Which Karyotype displays a female with Down syndrome?

a)
b)
c)
d)
15.
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
a)
Substitution
b)
Deletion
c)
Insertion
d)
Inversion
16.
What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift 
17.
Why are insertion and deletion (frameshift) mutations so harmful?
a)
They change all of the codons from the mutation on down the line, which changes the amino acid sequence
b)
They insert things that an organism doesn't need.
c)
They often delete things that organisms need.
d)
Insertion and deletions are not any more harmful than substitution mutations.
18.
Identify the DELETION mutation form the following: 
ATG CCA AAT
a)
ATG TCA AAT
b)
ATG CCT AAA T
c)
ATC CA  AT
d)
ATG CCA AAT
19.
Identify the SUBSTITUTION mutation form the following: 
ATG CCA AAT
a)
ATG TCA AAT
b)
ATG CCT AAA T
c)
ATC CA  AT
d)
ATG CCA AAT
20.
Which mutation will cause translation to stop? 
a)
Mutations 1 and 3 only
b)
Mutation 1 only
c)
Mutation 2 only
d)
Muations 1, 2, 3
21.

Genetic mutations can be...

a)

beneficial, harmful, or neutral

b)

beneficial only

c)

harmful only

d)

neutral only

22.
What are the building blocks of proteins called?
a)
DNA
b)
RNA
c)
Ribosomes
d)
Amino Acids
23.
What is a Gene?
a)
A segment of RNA that encodes for a protein
b)
A chromosome
c)
A segment of DNA that encodes for a protein
d)
Your genome
24.
What pairs with Adenine (A)? 
a)
Guanine (G)
b)
Cytosine (C)
c)
Adenine (A)
d)
Thymine (T)
25.
What pairs with Thymine (T)?
a)
Adenine (A)
b)
Thymine (T)
c)
Guanine (G)
d)
Cytosine (C) 
26.
What pairs with Guanine (G)?
a)
Adenine (A)
b)
Thymine (T)
c)
Cytosine (C)
d)
Guanine (G)
27.
What pairs with Cytosine (C)?
a)
Guanine (G)
b)
Cytosine (C)
c)
Adenine (A)
d)
Thymine
28.
What are the three types of mutation? 
a)
Insertion, Deletion, Subsitution
b)
Deletion, Newstion, Subsitution 
c)
Newstion, Deletion, Insertion 
d)
Insertion, Newstion, Substitution 
29.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
30.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
31.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
32.
This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?
a)
8
b)
5
c)
2
d)
3
33.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
34.
What is this?
a)
Pedigree
b)
Karyotype
c)
Venn diagram
d)
Punnett Square
35.
Notice the abnormal 23rd chromosome.  This individual suffers from which chromosomal genetic disorder?
a)
Klienfelter's Syndrome
b)
Down Syndrome
c)
Cris-du-Chat Syndrome
d)
Andrew's Syndrome
36.
The following karyotype illustrates an example of which syndrome?
a)
Turner's Syndrome
b)
Klienfelter's Syndrome
c)
Edward's Syndrome
d)
Down Syndrome
37.

This genetic disorder causes a reduction/absence of melanin in the skin, hair and eyes. Located on chromosome 6, this disorder is common throughout the animal kingdom.

a)

Anemia

b)

Albinism

c)

Myopia

d)

Hemophilia

38.

What is a phenotype?

a)

an inherited problem

b)

a group of 10 alleles

c)

a recessive gene

d)

the way an organism looks

39.
In RNA, Uracil pairs with ______. 
a)
cytosine
b)
adenine
c)
guanine
d)
thymine
40.
The process to go from DNA to mRNA is _______
a)
translation
b)
transcription
c)
replication
41.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
42.
DNA holds the code for
a)
lipids
b)
carbohydrates
c)
protein
d)
sugar
43.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
44.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
45.
What process is going on in this photo? 
a)
Transcription 
b)
Translation 
c)
Replication 
d)
All the above 
46.
Which component of DNA determines the traits of an organism? 
a)
Nitrogen Bases
b)
Sugar-Phosphate Backbone
c)
Hydrogen bonds
47.

What is the location in the cell for translation?

a)

nucleus

b)

mitochondria in cytoplasm

c)

ribosome in cytoplasm

d)

chloroplast in cytoplasm

48.
What is the three base sequence of mRNA that codes for a single amino acid?
a)
Anticodon
b)
Codon
c)
Protein
49.
What is the location in the cell for transcription?
a)
nucleus
b)
cytoplasm
c)
ribosome
d)
mitochondria
50.
Translation is the process where
a)
mRNA is created in the Nucleus
b)
mRNA is decoded to form a protein 
c)
glucose molecules are made
d)
is where lipids are synthesised
51.
Does the order of amino acids in a protein matter?
a)
YES!
b)
NO!
52.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
53.
In proteins, the amino acid order is determined by 
a)
nitrogenous bases in RNA
b)
random placement
c)
nitrogenous bases in DNA
d)
there is no order
54.
This molecule carries genetic information from the nucleus to the ribosomes in the cytoplasm.
a)
rRNA
b)
tRNA
c)
mRNA
d)
DNA
55.
What is the mRNA strand that would result from the DNA template strand CCTA?
a)
GGAT
b)
CCAT
c)
GGAU
d)
CCAU
56.
The process where mRNA is translated into amino acids happens in what part of the cell?
a)
Nucleus
b)
Mitochondria
c)
Cytoplasm
d)
Endoplasmic Reticulum
57.
The principle shown in the image is called what?
a)
Transcription
b)
The Central Dogma
c)
Translation
d)
The Principle of Proteins
58.
Which of these nitrogenous bases is NOT in RNA?
a)
Uracil
b)
Thymine
c)
Cytosine
d)
Guanine
59.

Hidaya's Albinism was proven recessive because the family pedigree:

a)

showed that Albinism was a condition at the chromosome level

b)

the affected individuals were only female

c)

the affected individuals appeared in every generation

d)

the affected individuals skipped 3,4 generations

60.

Hidaya's children are Mm. They are called:

a)

homozygous dominant

b)

carriers

c)

homozygous recessive

d)

infected

61.

How many genes have we studied that are associated with albinism?

a)

46

b)

23

c)

4

d)

1

62.

a photograph or picture of chromosomes grouped in ordered pairs is a ______________

a)

pedigree

b)

Punnett Square

c)

Venn Diagram

d)

Karyotype

63.
Which sex chromosomes would indicate a typical human male?
a)
XX
b)
X
c)
XY
d)
XXY
64.

A normal human zygote should have _____ chromosomes inside.

a)

46

b)

23

c)

92

d)

64

65.
What is the gender of the individual whose karyotype is seen in the image?
a)
Male
b)
Female
66.
Which structure is labeled as A in the diagram?
a)
Centromere
b)
Chromosome
c)
Sister chromatids
67.
Which structure is labeled as B in the diagram?
a)
Centromere
b)
Chromosome
c)
Sister chromatids
68.
Which would be considered a somatic cell?
a)
Sperm cell
b)
Egg Cell
c)
Skin Cell
d)
All of these
69.

What is the diploid number of chromosomes for a bat if the sperm cell has 22 chromosomes?

a)

22

b)

11

c)

44

d)

21

70.
A diploid cell of a normal male human contains 
a)
22 autosomes and two Y-chromosomes.
b)
22 pairs of autosomes and two Y-chromosomes.
c)
22 pairs of autosomes, one X and one Y-chromosome
d)
22 autosomes and two X-chromosomes
71.

Which of the following can a karyotype not tell you:

a)

Albinism

b)

Turner's Syndrome

c)

Down Syndrome

d)

Edward's Syndrome

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