WorksheetsYear 10 Semester 1 Exam Revision
Total questions: 71
Worksheet time: 49mins
Name
Class
Date
1.
What is the definition of phenotype?
a)
The physical expression of a trait
b)
The genetic combination of alleles
c)
A gene on the DNA strand
2.
What is the definition of genotype?
a)
The physical expression of a trait
b)
The genetic combination of alleles
c)
the genes on a DNA strand
3.
One form of a gene is called_______________
a)
a DNA
b)
a Phenotype
c)
a trait
d)
an allele
4.
the condensed form of DNA is called________________
a)
an allele
b)
a gene
c)
a chromosome
d)
a phenotype
5.
Where, in the eukaryotic cell, is DNA located?
a)
ribosomes
b)
nucleus
c)
E.R.
d)
cytoplasm
6.
Which of the following will only show if two alleles are present?
a)
a dominant trait
b)
a recessive trait
7.
Which of the following genotypes would be considered heterozygous?
a)
BB
b)
gg
c)
Ff
d)
TT
8.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
9.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
10.
Brown fur color is dominant over black fur color. Which of the following is the actual genotype of ALL of the offspring in the next generation of this cross for fur color?
AA x aa
AA x aa
a)
AA
b)
Aa
c)
aa
d)
brown fur
11.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
12.
B - black, b - brown. Two black mice mate and have some black and some brown mice. What is the genotype of the parents?
a)
BB x Bb
b)
BB x bb
c)
Bb x Bb
d)
Bb x bb
13.
True/False: Different genotypes can code for the same phenotype.
a)
True
b)
False
14.
This image shows a...
a)
Punnett Square
b)
Phenotype
c)
Genotype
d)
Dominant allele
15.
A phenotype is the...
a)
letter combination
b)
dominant gene
c)
recessive gene
d)
physical appearance
16.
Dominant alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
17.
Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
18.
Tt is-
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
19.
If the four existing children in a family are all sons, what chance would there be that the next child would also be a son?
a)
75%
b)
50%
c)
25%
d)
20%
20.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
21.
one set of instructions for an inherited trait
a)
heredity
b)
allele
c)
trait
d)
gene
22.
A chart or “family tree” that tracks which members of a family have a particular trait
a)
Gene
b)
Pedigree
c)
Punnett Square
d)
Dominant
23.
A person who has one recessive allele for a trait, but does not have the trait
a)
Homozygous
b)
Selective Breeding
c)
Mutation
d)
Carrier
24.
Any permanent change in a gene or chromosome of a cell; may be beneficial, harmful, or have little effect on an organism
a)
Homozygous
b)
Selective Breeding
c)
Mutation
d)
Carrier
25.
When transcribing DNA, an A is always going to match with a(n) ___?
a)
U
b)
A
c)
T
d)
G
26.
In a pedigree, a female is represented by...
a)
circles
b)
squares
27.
During asexual reproduction, an exact copy is made
a)
true
b)
false
28.
A karyotype is a visual image of chromosomes, like the image here.
a)
True
b)
False
29.
how many chromosomes are found in the SEX cells of humans?
a)
23
b)
46
c)
12
d)
92
30.
how many chromosomes are in the body cells of humans?
a)
46
b)
23
c)
12
d)
92
31.
When something is cloned, which of the following is true?
a)
it is an exact copy
b)
it is mostly the same
c)
it have 50% of the DNA of the original
32.
When something is fully shaded on a pedigree is represents...
a)
AA
b)
Aa
c)
aa
33.
When something is half shaded on a pedigree is represents...
a)
AA
b)
Aa
c)
aa
34.
Which of the following represents a male?
a)
XY
b)
XX
c)
Y
d)
XXY
35.
Which of the following represents a female?
a)
XY
b)
XX
c)
Y
d)
XXY
36.
A mutation in which of the following would be passed to an offspring?
a)
skin cell
b)
egg cell
c)
stomach cell
d)
tooth cell
37.
Which of the following is the complement of DNA to: AATCCG
a)
TTAGGC
b)
UUAGGC
c)
UUTCCG
d)
A - C - G
38.
place the following is order from largest to smallest.
a)
chromosomes -- genes -- DNA
b)
DNA -- genes -- chromosomes
c)
genes -- DNA -- chromosomes
39.
Which of the following always pairs with A in DNA?
a)
T
b)
C
c)
G
d)
A
40.
Which of the following always pairs with A in DNA?
a)
T
b)
C
c)
G
d)
A
41.
In solving a problem by a scientific investigation, which of the following would be the best first step?
a)
Design an experimental procedure.
b)
Define the problem by asking questions.
c)
Come to a conclusion based on your existing knowledge.
d)
Form a larger group and vote on the answer.
42.
If I water the plant more often, then it will grow taller. Name the independent variable.
a)
The height of the plant
b)
The size of the pot
c)
The amount of water
d)
The amount of light.
43.
If I water the plant more often, then it will grow taller. Name the dependent variable.
a)
The amount of water.
b)
The amount of soil.
c)
The height of the plant.
d)
The amount of water.
44.
If I water the plant more often, then it will grow taller. Which of these is not a constant?
a)
The amount of soil.
b)
The pot size.
c)
The type of plant.
d)
The amount of water.
45.
When writing your hypothesis, what information follows IF?
a)
dependent variable
b)
how you know it will happen
c)
independent variable
d)
anything
46.
The summary at the end of an experiment that explains the results.
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
47.
What is an if....then... statement that predicts the outcome of an experiment?
a)
Conclusion
b)
Materials
c)
Hypothesis
d)
Problem
48.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
49.
The tendency of a material to resist the flow of electricity is measured in.
a)
volts
b)
amps
c)
ohms
d)
watts
50.
Current is the ...
a)
pressure of electricity
b)
flow of electricity
c)
tendency of a material to resist the flow of electricity.
d)
total power
51.
The pressure or electromotive force is measured in ...
a)
amps
b)
watts
c)
volts
d)
ohms
52.
A conductor is a
a)
material that does not allow electrons to flow easily.
b)
material that allows electrons to flow easily.
c)
device the detects an electric charge.
d)
device the changes voltage.
53.
Which of the charges below will attract each other
a)
[Positive] [Positive]
b)
[Negative] [Negative]
c)
[Positive] [Negative]
d)
All of the Above
54.
A circuit with two or more branches is a __________ circuit
a)
series
b)
parallel
55.
How many paths does a series circuit have for electricity to follow?
a)
one
b)
two
c)
three
d)
two or more
56.
The image is of a ______________ circuit.
a)
series
b)
parallel
57.
The image is of a ______________ circuit.
a)
series
b)
parallel
58.
Copper is a
a)
conductor
b)
insulator
59.
Glass is a
a)
conductor
b)
insulator
60.
What is the unit of measurement for current
a)
Ohm's
b)
Amperes
c)
Volts
61.
What it the formula to find voltage.
a)
I= V/R
b)
R=V/I
c)
V= I x R
62.
Charge is caused when objects are rubbed together and _______________ are knocked off.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Positrons
63.
The potential difference that causes charges to move in a circuit is ___.
a)
voltage
b)
resistance
c)
current
d)
electric discharge
64.
Electrical resistance is low in a good conductor.
a)
true
b)
false
65.
Charges that are different _____________ each other.
a)
attract
b)
repel
c)
equal
d)
move opposite to
66.
A complete unbroken path through which electric charges can flow.
a)
insulator
b)
electric circuit
c)
conductor
d)
voltage
67.
In a series circuit if one light bulb goes out what will happen to the rest of the lights?
a)
They will all go out
b)
They will all stay on
c)
They will get brighter
d)
They will all get dimmer
68.
When a light switch is off this is an example of a .......
a)
closed circuit
b)
open circuit
c)
series circuit
d)
parallel circuit
69.
When a light switch is on this is an example of a .....
a)
closed circuit
b)
open circuit
c)
parallel circuit
d)
series circuit
70.
A light bulb is an example of a
a)
power source
b)
resistor
c)
a wire
d)
switch
71.
Ohms law states the the resistance of a circuit is equal to ....
a)
voltage divided by current
b)
current divided by voltage
c)
current divided by length of circuit
d)
length divided by time
100 %
