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Worksheets11-14 Unit Exam Review
Total questions: 62
Worksheet time: 31mins
Name
Class
Date
1.
What are the different forms of a gene called?
a)
trait
b)
allele
c)
phenotype
d)
genotype
2.
Which of the following are homozygous recessive?
a)
Tt
b)
tt
c)
TT
3.
What is the situation called where one allele is not completely dominant over another?
a)
multiple alleles
b)
polygenic inheritance
c)
multiple genes
d)
incomplete dominance
4.
If an organism's diploid number is 8, what is its haploid number?
a)
2
b)
4
c)
6
d)
8
5.
If a plants alleles for height are tt, what is true for the parents?
a)
Both parents contributed a recessive allele.
b)
Both parents contributed a dominant allele.
c)
One parent contributed a dominant allele, and the other recessive.
d)
The parents didn't contribute any alleles.
6.
Mendel's principles apply to what kind of organisms?
a)
pea plants
b)
all organisms
c)
animals
d)
humans
7.
What process produces gametes?
a)
meiosis
b)
sperm
c)
mitosis
d)
humans
8.
How many alleles does each gamete contain?
a)
2
b)
4
c)
1
d)
3
9.
What is produced at the conclusion of meiosis?
a)
4 diploid cells
b)
2 diploid cells
c)
4 haploid cells
d)
2 haploid cells
10.
When do tetrads form?
a)
prophase 1
b)
metaphase 1
c)
anaphase 1
d)
telophase 1
11.
What is the situation where there are 4 different versions of a gene?
a)
alleles
b)
multiple alleles
c)
multiple genes
d)
genes
12.
What is true about linked genes?
a)
they are located on different chromosomes
b)
on autosomes
c)
they are located on the same chromsomes
d)
none of the above
13.
What is true about 2 genes on the same chromosome and rarely assort independently of each other?
a)
they are most likely to be inherited
b)
most likely to not be inherited
c)
they are more likely to be linked
d)
they are less likely to be linked
14.
If a tall pea plant self- pollinates what will the offspring look like?
a)
50% short 50% tall
b)
completely indentical
c)
25% tall 75% short
d)
100% heterozygous
15.
State the difference between meiosis and mitosis.
a)
there is no difference
b)
mitosis results in 2 identical diploid cells and meiosis results in 4 different haploid cells
c)
mitosis makes 4 cells and meiosis makes 2
d)
meiosis only happens in animals
16.
What color will a chick be that shows codominance when the alleles are for black and white feathers?
a)
black
b)
red
c)
white
d)
speckled with black and white feathers
17.
Why did Morgan use fruit flies in his experiment?
a)
reproduce quickly and they are simple
b)
more complex
c)
he liked them
d)
they live long
18.
What is created by crossing over?
a)
mutants
b)
genetic diversity
c)
prophase
d)
tetrad
19.
Variation in human skin color or height is an example of...?
a)
polygenic inheritance
b)
inherited trait
c)
gene mutation
d)
nondisjunction
20.
Why is DNA a good molecule for storing information?
a)
it is abundant on Earth
b)
it can be created easily
c)
the naturally produces ir
d)
it's bases can be joined together in any order
21.
When does DNA replication happen relative to cell division?
a)
mitosis
b)
before cell division
c)
anaphase
d)
metaphase
22.
What do bacteriophages infect?
a)
brains
b)
bacteria
c)
water
d)
blood
23.
Where is DNA located in an eukaryote?
a)
the cytoplasm
b)
the mitochondria
c)
the nucleus
d)
the cell wall
24.
Where is DNA transmission most important (what kind of cells are produced)?
a)
body cells
b)
plant cells
c)
nucleosomes
d)
gametes
25.
When DNA replication occurs what does each DNA molecule consist of?
a)
an inverted copy of the parents DNA
b)
an exact copy of the parents DNA
c)
half of a copy
d)
double the parents DNA
26.
What are the 3 parts to a DNA nucleotide?
a)
adenine, deoxyribose, 3 phosphate groups
b)
adenine, 3 phosphate groups, ribose
c)
carbon, adenine, 3 phosphate groups
d)
oxygen, 3 phosphate groups, adenine
27.
What are the base pairing rules?
a)
T=C and G=A
b)
A=T and C=G
c)
C=A and T=G
d)
T=B and R=A
28.
What is complementary strand for this template strand? (TGGATC)
a)
TCCUAC
b)
AGCTAC
c)
ACCTAG
d)
ACCUAG
29.
What stores information in a cell (what is passed from one generation to the next)?
a)
RNA
b)
nucleotides
c)
bases
d)
DNA
30.
What happens when DNA is missing?
a)
information is lost
b)
new information is born
c)
cells instantly replicate to compensate
d)
the cells dies
31.
How does DNA coil up to form a chromosome?
a)
it spins until it coils
b)
it forms a Y shape
c)
DNA coils around histones that coil into nucleosomes into supercoils into chromosomes
d)
RNA attracts it into a coil
32.
What scientists built the first model of a DNA molecule?
a)
Rosalind Franklin
b)
James Watson and Francis Crick
c)
Griffith
d)
Steven Hawking
33.
What is found in bacteriophage?
a)
proteins
b)
sugar
c)
nucleic acid
d)
phosphate groups
34.
What was Rosalind Franklin's contribution to the discovery of DNA?
a)
she made models of DNA
b)
she used X-Ray diffraction
c)
she found RNA
d)
she used a pig
35.
What is Chargaff's rule?
a)
%A=%T; %G=%C
b)
%A=%G; %T=%C
c)
%A=%C; %T=%G
d)
%C=%C; %A=%G
36.
A always pairs with ___ and G always pairs with___?
a)
C,T
b)
G,T
c)
T,C
d)
B,A
37.
Why did Griffith use the term 'transformation' to describe his findings?
a)
the harmful bacteria transformed back to life
b)
the harmless bacteria was transformed into harmful bacteria
c)
the rats' DNA transformed
d)
the harmful bacteria was transformed into harmless DNA
38.
What enzyme assists with adding base pairs to the strands during DNA replication?
a)
helicase
b)
DNA polymerase
c)
dromicase
d)
RNA polymerase
39.
What did Avery conclude cause transformation?
a)
DNA was the transforming molecule
b)
RNA existed
c)
protein coats transfered
d)
nucleosomes transmitts
40.
What is the result of most mutations?
a)
usually has no effect
b)
makes them react faster
c)
makes them react slower
d)
answer not here
41.
What is the correct sequence of transferring information?
a)
DNA->RNA->protein
b)
RNA->DNA->protein
c)
proteins->RNA->DNA
d)
RNA->proteins->DNA
42.
What are the characteristics of polyploidy plants?
a)
bigger andstronger
b)
smaller and weaker
c)
bigger and weaker
d)
stronger and smaller
43.
Where does transcription take place in eukaryotes?
a)
Nucleus
b)
Cytoplasm
c)
Ribosome
d)
Bacteria
44.
What happens during a deletion mutation?(what is lost)
a)
proteins
b)
information
c)
bababas
d)
ribosomes
45.
How many nucleotides are needed to specify ONE amino acid?
a)
4
b)
3
c)
2
d)
46
46.
What does translation and transcription produce?
a)
Energy
b)
Proteins
c)
Water
d)
sex cells
47.
All of the following are differences between RNA and DNA except_____?
a)
RNA has 1 strands, DNA has 2
b)
DNA has deoxyribose and RNA has ribose
c)
DNA has thymine and RNA has uracil
d)
DNA has acid mutations and RnA has lymotide
48.
What enzyme plays a role in transcription?
a)
DNA polymerase
b)
RNA polymerase
c)
helicase
d)
enzymase
49.
A mutation involving one or more nucleotides is called...?
a)
point mutation
b)
gene mutation
c)
chromosomal mutation
d)
allele mutation
50.
How many chromosomes are shown in a normal karyotype?
a)
23
b)
65
c)
46
d)
21
51.
How many X chromosomes does an egg cell have?
a)
2
b)
3
c)
1
d)
10
52.
Where are sex linked genes located?
a)
any chromosomes
b)
X chromosomes
c)
Y chromosomes
d)
X/Y chromosomes
53.
No baby has ever been born without what chromosome?
a)
Z chromosome
b)
X chromosome
c)
Y chromosome
d)
W chromosome
54.
What is it called when chromosomes fail to separate?
a)
huntington's disease
b)
nondisjunction
c)
barr body
d)
turner's disease
55.
Nondisjunction can result in what?
a)
non separation of chromosomes
b)
extra chromosomes
c)
down syndrome
d)
all of the above
56.
What is the human genome project?
a)
sequencing of all the genes human DNA
b)
sequencing of human traits
c)
the amount of DNA that a human has
d)
finding a cure for a disease
57.
What did Mendel use a dihybrid cross to determine?
a)
segregation of two genes
b)
discover second ion
c)
find gene symbols
d)
determine parent cross
58.
What forms a tetrad?
a)
four copies of a chromosome
b)
a homolgous pair of chromosomes, each made of 2 chromatids
c)
two sister chromatids
d)
6 chromatids
59.
Is sickle cell a recessive or dominant disorder?
a)
recessive
b)
dominant
c)
chromosome
d)
autosome
60.
Which of the following include all the others?
a)
DNA molecules
b)
histones
c)
chromosomes
d)
nucleosomes
61.
In what type of cell is the transmission of information MOST important?
a)
nerve cells
b)
skin cells
c)
sex cells
d)
bone cells
62.
Where does translation take place in eukaryotes?
a)
nucleus
b)
cytoplasm
c)
lysosomes
d)
golgi apparatus
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