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WorksheetsUnit #4 EOC Review
Total questions: 55
Worksheet time: 55mins
Name
Class
Date
1.
What is a codon?
a)
a sequence of 3 amino acids
b)
a sequence of three nitrogen bases
c)
a sequence of 3 enzymes
d)
a sequence of 3 proteins
2.
The DNA nucleotide is composed of three parts. Which two components make up the nucleotide backbone?
a)
ribose sugar and base
b)
ribose sugar and phosphate group
c)
nitrogen base and deoxyribose sugar
d)
deoxyribose sugar and phosphate group
3.
Which type of RNA delivers the genetic code to the ribosome?
a)
tRNA
b)
mRNA
c)
rRNA
d)
tmRtmRNA
4.
What is the function of transfer RNA?
a)
It is a part of the ribosome.
b)
It bonds to other RNA molecules, leading to their destruction.
c)
It delivers the correct amino acid to the ribosome.
d)
It carries the information coding for the amino acid sequence of a protein.
5.
Which nucleotide is complementary to adenine?
a)
adenine
b)
thymine
c)
cytosine
d)
guanine
6.
How are the amino acids linked together during translation?
a)
by creating peptide bonds
b)
by creating hydrogen bonds
c)
by creating covalent bonds
d)
by creating phospate bonds
7.
How many amino acids can be represented by a single 3-base DNA sequence?
a)
1
b)
3
c)
6
d)
8
8.
DNA codes for __________ which determine ___________
a)
mRNA, tRNA
b)
mRNA, ribosomes
c)
proteins. traits
d)
proteins, peptide bonds
9.
Which correctly outlined the central dogma
a)
DNA --> mRNA --> rRNA
b)
DNA --> tRNA --> protein
c)
DNA --> mRNA --> protein
d)
DNA --> amino acid --> protein
10.
Which of the following best defines a gene?
a)
A diploid cell containing two sets of chromosomes
b)
A unit made up of chromosomes that control for a specific trait
c)
A segment of DNA that codes for a particular protein
d)
All the other answers are correct.
11.
What is the difference between DNA and RNA
a)
DNA has uracil and RNA has thymine
b)
DNA is involved in transcription and RNA is involved in translation
c)
DNA contains thymine and RNA contains uracil
d)
DNA is made of nucleotides and RNA is not
12.
What will be the resulting mRNA from this DNA sequence:
GAT-TAC-AGA-TTA-CAT?
GAT-TAC-AGA-TTA-CAT?
a)
CTA-ATG-TCT-AAT-GTA
b)
GAU-UAG-UGA-UUA-GUT
c)
CUA-AUG-UCU-AAU-GUA
d)
CAT-ACA-TAC-ATA-TAG
13.
What type of bonds hold the nitrogen bases in the DNA rungs together?
a)
ionic bonds
b)
hydrogen bonds
c)
peptide bonds
d)
james bonds
14.
Within the eukaryotic cell, where does transcription occur?
a)
Nucleus
b)
Cytoplasm
c)
Ribosome
15.
Which of the following molecules is made during transcription?
a)
DNA
b)
tRNA
c)
protein
d)
mRNA
16.
Within the cell, where does translation occur?
a)
Nucleus
b)
Cytoplasm
c)
Ribosome
17.
Which form of RNA carries amino acids from the cytoplasm to the ribosome?
a)
amino RNA
b)
ribosomal RNA
c)
transfer RNA
d)
messenger RNA
18.
Which scientist(s) built the 3D model of the DNA double helix?
a)
Watson and Crick
b)
Hershey and Chase
c)
Franklin
d)
Char gaff
19.
Which of the following terms means that in each molecule of DNA made during replication there is one original strand and one new strand?
a)
Antiparallel
b)
Semi-conservative
c)
Complementary base-pairing
20.
During which phase of the cell cycle is DNA replicated?
a)
G1 Phase
b)
S Phase
c)
M Phase
d)
G2 Phase
21.
What is the definition of Homozygous?
a)
When one allele is dominant and one is recessive
b)
When an individual has two sets of the same allele.
c)
when it is neither dominant or recessive
22.
What is the definition of heterozygous?
a)
when an individual has two sets of the same allele
b)
when it is neither dominant or recessive
c)
A pair of genes where one is dominant and one is recessive.
23.
The genotype is the ______________.
a)
physical appearance
b)
Genetic makeup
c)
Alleles gained from one parent
24.
The phenotype is the _______________.
a)
physical appearance of an organism
b)
Genetic makeup
c)
Alleles acquired from a specific parent.
25.
The passing of characters from parents to offspring is called?
a)
Monohybrid cross
b)
Heredity
c)
True breeding
d)
Genetics
26.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
27.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
28.
Each parent contributes one of the genes for a particular trait. The genes of the pair are called:
a)
variables
b)
gametes
c)
hybrids
d)
alleles
29.
Variations of a trait are __________________.
a)
genes
b)
chromosomes
c)
hybrids
d)
alleles
30.
The Law of Segregation states:
a)
alleles are inherited together
b)
alleles separate during gamete formation
c)
only dominant genes are inherited
31.
The Law of Independent Assortment states:
a)
most genes are inherited together
b)
only dominant genes are inherited
c)
recessive genes can never be expressed
d)
genes that control different characteristics are inherited separately and are not related
32.
In pea plants, the trait for tall stems is dominant over the trait for short stems. If two heterozygous tall plants are crossed, what percentage of the offspring would be expected to have the same phenotype as the parents?
a)
100%
b)
75%
c)
50%
d)
25%
33.
Chromosomes that carry genes that code for the same products, such as hemoglobin or eye pigment, are said to be:
a)
homologous
b)
heterozygous
c)
heterogeneous
d)
homozygous
34.
In snapdragons, Tallness (T) is dominant to dwarfness (t). In a cross between two plants that are homozygous for the recessive allele, the percent of offspring expected to exhibit tallness is
a)
25%
b)
75%
c)
100%
d)
0%
35.
Cystic Fibrosis (CF) is a genetic disorder that is controlled by a recessive allele. If a person suffering from CF were to marry an individual who is heterozygous for the trait, what % of their children could be expected to unaffected carriers of the trait? Ignore issues of sterility in persons with CF.
a)
0%
b)
25%
c)
75%
d)
50%
36.
Identify the phase.
a)
Metaphase I
b)
Metaphase II
c)
Anaphase I
d)
Anaphase II
37.
After meiosis II the daughter cells will contain ____ chromosomes if the original cell contained 78.
a)
78
b)
39
c)
23
d)
46
38.
Which of the following cells is a gamete?
a)
egg
b)
bone
c)
heart
d)
muscle
39.
The fertilized egg is termed a/an _____.
a)
gamete
b)
allele
c)
homolog
d)
zygote
40.
In mitosis cells are genetically _______, but in meiosis cells are genetically ______.
a)
diverse, identical
b)
identical, diverse/different
41.
Is the following cell diploid or haploid?
a)
Diploid
b)
Haploid
42.
In sexual reproduction, chromosome reduction is necessary to ___.
a)
ensure that all offspring have the correct diploid number of chromosomes
b)
ensure that all offspring have the correct haploid number of chromosomes
c)
ensure that all daughter cells are identical
43.
Mitosis makes sure that all daughter cells are _____.
a)
genetically identical, diploid
b)
genetically identical, haploid
c)
genetically diverse, diploid
d)
genetically diverse, haploid
44.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
45.
Which best describes the process shown?
a)
mutation in which the DNA content of the gene is ltered
b)
segregation of sister chromatids
c)
condensation and segregation of the alleles
d)
crossing-over which alleles are exchanged
46.
This diagram represents what type of inheritance pattern?
a)
sex-linked inheritance
b)
complete dominance
c)
codominance
d)
incomplete dominance
47.
How many phenotypes are there in ABO blood types?
a)
3
b)
4
c)
6
d)
12
48.
What is this diagram called? What do the circles represent?
a)
karyotype, males
b)
karyotype, females
c)
pedigree, females
d)
pedigree, males
49.
What is this tool used for?
a)
to compare DNA of two individuals
b)
read braille
c)
analyze genetic disorders in many generations of individuals
d)
analyze genetic disorders in one individual
50.
ABO blood types are an example of what type of inheritance?
a)
multiple alleles
b)
incomplete dominance
c)
polygenic inheritance
d)
genetic mutations
51.
What gender of offspring are most often affected by sex-linked inheritance? What gender are usually carriers of the trait?
a)
males, males
b)
females, males
c)
males, females
d)
females, females
52.
What is the result of meiosis?
a)
2 daughter cells that are haploid and genetically different
b)
2 daughter cells that are haploid & identical
c)
4 daughter cells that are diploid & genetically different
d)
4 daughter cells that are haploid & genetically different
53.
Which genetic disorder is caused by a dominant allele?
a)
Huntington's
b)
Hemophilia
c)
Cystic fibrosis
d)
PKU
54.
This genetic disorder is inherited by a recessive allele found on the X chromosome.
a)
PKU
b)
Cystic fibrosis
c)
Down's syndrome
d)
Hemophilia
55.
What disease is characterized by abnormally shaped red blood cells?
a)
hemophilia
b)
sickle cell anemia
c)
phenylketonuria
d)
Huntington's
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