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Review Quiz ม3

Total questions: 50

Worksheet time: 37mins

Name
Class
Date
1.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains uracil
2.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
3.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
4.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
5.
When DNA makes a copy of itself, the new strands are identical or different?
a)
identical
b)
different
6.
One form of a gene is called_______________
a)
a DNA
b)
a Phenotype
c)
a trait
d)
an allele
7.
The passing of characters from parents to offspring is called?
a)
Monohybrid cross
b)
Heredity
c)
True breeding
d)
Genetics
8.
Having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
9.

What term is used to describe an organism's appearance or other detectable characteristic?

a)

phenotype

b)

genotype

c)

gene

d)

allele

10.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
11.
In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?
a)
25%
b)
0%
c)
100%
d)
50%
12.
What does the prefix hetero- in heterozygous mean?
a)
same
b)
different
c)
dating
d)
human
13.
Which of the following is heterozygous
a)
Ww
b)
ii
c)
DD
d)
kk
14.
How many pairs of chromosomes exist in each of your cells?
a)
10
b)
12
c)
23
d)
46
15.

Which statement is true?

a)

Your DNA is the same as your siblings.

b)

Your set of DNA is identical to your mother's.

c)

Your set of DNA is identical to your father's.

d)

Your DNA is unique to you.

16.
Which of the characteristics is a lion least likely to pass on to its offspring?
a)
fur color
b)
length of tail
c)
scars on leg
d)
body size
17.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
18.
Mark is a tall, 11 year old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit?
a)
height
b)
the scar
c)
his intelligence
d)
ability to play drums
19.
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:
a)
all black
b)
all white
c)
all gray
d)
speckled black and white
20.
incomplete dominance means that there traits are,,,
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
21.

Two true breeding flowers (red and white) have offspring that are all pink. What pattern of inheritance is this?

a)

codominance

b)

dominance

c)

incomplete dominance

d)

polygenic inheritance

22.

From DNA> mRNA

a)

transcription

b)

replication

c)

amino acids

d)

translation

23.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
24.
What is the Law of Conservation of Mass?
a)
It states that no matter can be created or destroyed.
b)
It states that no energy can be created or destroyed.
c)
It states that matter can be created or destroyed.
d)
It states that no sound can be created or destroyed.
25.
What is a coefficient?
a)
The small number on the right of the chemical symbol.
b)
The large number in front of a chemical formula.
c)
The number in between the chemical symbols.
d)
The number behind a chemical formula.
26.
What is the part of the chemical equation in green called? 
Fe + S --> FeS
a)
products
b)
reactants
c)
yield
d)
chemical formula
27.
What is the little number after an element in a chemical equation called.
Example: H2
a)
Coefficient 
b)
Subscript
c)
Atom
d)
Equation
28.
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO 
a)
1
b)
2
c)
3
d)
4
29.

How many elements are in C6H12O6?

a)

1

b)

2

c)

3

d)

24

30.

Balance this equation

__Na + __H2O --> __NaOH + __H2

a)

2,2 --> 2,1

b)

4,4 --> 4,1

c)

1,2 --> 2,4

d)

1,2 --> 2,1

31.
Which is the name of the kind of solid substance formed in this figure?  
a)
aqueous 
b)
precipitate
c)
acid
d)
synthesis 
32.
Which of these is NOT a sign that a chemical change has occurred? 
a)
A loss of transparency 
b)
An unexpected color change
c)
A temperature change
d)
The formation of a precipitate
33.
What letter represents the activation energy?
a)
A
b)
B
c)
C
d)
D
34.

What term is given to a reaction which transfers heat energy to the surroundings?

a)

Endothermic

b)

Reversible

c)

Exothermic

d)

Exotermic

35.

When barium hydroxide and ammonium chloride react, the temperature of the mixture decreases. What kind of reaction is this?

a)

Endothermic

b)

Decomposition

c)

Exothermic

d)

Indothermic

36.
A catalyst works by
a)
changing the order of the reaction
b)
increasing the temperature
c)
lowering the activation energy
d)
making the activated complex
37.

Are the products or reactants of this reaction storing more energy in their chemical bonds?

a)

Both storing the same

b)

No way to tell

c)

Products

d)

Reactants

38.

2NaBr + Ca(OH)2 ----> CaBr2 + 2NaOH

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

39.

2NaBr + Ca(OH)2 ----> CaBr2 + 2NaOH

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

40.

2NH3+ H2SO4 ----> (NH4)2SO4

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

41.

Li3N + NH4NO3 ----> LiNO3 +(NH4)3N

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

42.

Pb + FeSO4 ----> PbSO4 + Fe

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

43.

P4 + 3O2 ----> 2P2O3

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

44.

O3 ----> O. + O2

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

45.

The two types of alleles are (select two)

a)

dominant

b)

doughnut

c)

expressive

d)

recessive

46.
Which of the following is heterozygous
a)
FF
b)
tt
c)
Gg
d)
RR
47.
Which of the following is homozygous dominant?
a)
Jj
b)
Rr
c)
MM
d)
ee
48.
How many letters does a genotype contain?
a)
1
b)
2
c)
3
d)
4
49.
Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's phenotype?
a)
Brown Hair
b)
Blonde Hair
c)
Brown and Blonde Hair
d)
Black Hair
50.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies

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