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WorksheetsHeredity 3 and 4
Total questions: 41
Worksheet time: 21mins
Name
Class
Date
1.
The "factory" through which the "protein assembly line" is fed is the
a)
cell membrane
b)
nucleus
c)
ribosome
d)
mitochondria
2.
How many amino acids does the DNA sequence ACCTAGTTGAACACC code for?
a)
12
b)
4
c)
15
d)
5
3.
Who used plants to study the way traits are passed from parents to offspring?
a)
Sutton
b)
Punnett
c)
Mendel
d)
Allele
4.
A mutation in DNA Could result in
a)
no change at all
b)
a harmful change
c)
a positive change
d)
All of the above
5.
If you cross a white flower (pp) with a purple flower (PP), the possible genotypes of the offspring are
a)
all PP
b)
all Pp
c)
all pp
d)
PP and pp
6.
According to the last question, the phenotypes for a cross of PP x pp would be
a)
all white
b)
all pink
c)
all purple
d)
white and purple
7.
The complementary strand to ATCGGATAC would be
a)
TAGCCTATG
b)
TAGGCATAC
c)
TTGCCTTTC
d)
ATCGGATAC
8.
If you cross two hamsters that have the genotype Tt, how many possible genotypes can be found in the offspring?
a)
four
b)
two
c)
one
d)
three
9.
An original base sequence of DNA, AAACCCGGG, changes to AAACACGGG. This mutation is know as a(n)
a)
substitution.
b)
deletion.
c)
insertion.
d)
omission.
10.
The organism's appearance is know as its
a)
genotype.
b)
heredity.
c)
pedigree.
d)
phenotype.
11.
An original base sequence of DNA, AAACCCGGG, changes to AAACACCGGG. This mutation is known as a(n)
a)
omission.
b)
substitution.
c)
insertion.
d)
deletion.
12.
Chargaff's rules are represented as
a)
A=C and T=G.
b)
T=C and G=A.
c)
A=G and T=C.
d)
A=T and G=C.
13.
What materials make up each nucleotide in a DNA molecule?
a)
an amino acid, a base, and a protein
b)
a gene, an allele, and a trait
c)
a sugar, a phosphate, and a base
d)
chromosomes and genes
14.
In DNA, there are four different types of
a)
sugars.
b)
bases.
c)
phosphate groups.
d)
none of the above
15.
The molecule shown above is a(n)
a)
protein.
b)
nucleotide.
c)
amino acid.
d)
DNA molecule.
16.
The part of the DNA molecule that attaches to amino acids are the
a)
phosphate groups.
b)
bases.
c)
sugars.
d)
None of the above
17.
In the Punnett square, the offspring in square 4 would have the genotype
a)
tt.
b)
TtT.
c)
TT.
d)
Tt.
18.
In the Punnet square, the offspring in square 2 would have the genotype
a)
tt.
b)
TT.
c)
Tt.
d)
TtT.
19.
In the Punnett square, the offspring in square 1 would have the genotype
a)
TtT.
b)
TT.
c)
Tt.
d)
tt.
20.
In the Punnett square, the offspring in square 3 would have the genotype
a)
tt.
b)
TT.
c)
Tt.
d)
TtT.
21.
Offspring from which of the following squares would be tall?
a)
3
b)
2
c)
1
d)
All of the above
22.
Offspring from which of the following squares would be short?
a)
2
b)
4
c)
3
d)
None of the above
23.
At the end of the replication process, each of the two new DNA molecules is composed of
a)
two original DNA strands.
b)
three new DNA strands.
c)
two new DNA strands.
d)
one new and one original DNA strand.
24.
A red snapdragon flower crossing with a white snapdragon flower produces a pink snapdragon flower. This is an example of
a)
one gene influencing many traits.
b)
incomplete dominance.
c)
many genes influencing one trait.
d)
environmental influences on your genes.
25.
The picture is a basic structure of
a)
a pedigree.
b)
a mutagen.
c)
DNA.
d)
a ribosome.
26.
This consists of
a)
dead cells.
b)
ribosomes.
c)
mutagens.
d)
nucleotides.
27.
DNA
a)
has a structure like a twisted ladder.
b)
is made up of amino acids.
c)
cannot be repaired if it is mutated.
d)
All of the above.
28.
An original base sequence of DNA, AAACCCGGG, changes to AAACCGGG. This mutation is known as a(n)
a)
deletion.
b)
addition.
c)
substitution.
d)
insertion.
29.
The code for a given amino acid consists of how many bases?
a)
two
b)
four
c)
three
d)
one
30.
Probability is
a)
the mathematical chance that an event will occur.
b)
a 50% chance that an event will occur.
c)
a 3:1 chance that an event will occur.
d)
always expressed as a ratio.
31.
The inherited combination of alleles is known as the offspring's
a)
phenotype
b)
heredity.
c)
pedigree.
d)
genotype
32.
A gene is
a)
a set of instructions for each trait.
b)
a portion of a strand of DNA.
c)
instructions on how to make a protein.
d)
All of the above.
33.
How many chromosomes are present in a normal human sex cell?
a)
23
b)
92
c)
22
d)
46
34.
If a change occurs in a base sequence of DNA , it might cause a different _________ to be substituted in a protein.
a)
enzyme
b)
nucleic acid
c)
ribosome
d)
amino acid
35.
In a DNA strand, the rungs or steps of the "ladder" are made of
a)
nucleotide bases.
b)
sugar molecules.
c)
alternating sugar and phosphate molecules.
d)
phosphate molecules
36.
The color of your eyes is an example of
a)
how the environment influences your genes.
b)
incomplete dominance.
c)
how many genes can influence one trait.
d)
one gene influencing many traits.
37.
In meiosis
a)
four cells are produced from a single cell
b)
the chromosomes are copied twice.
c)
the nucleus divides once.
d)
All of the above
38.
Genes are found on
a)
anthers.
b)
alleles.
c)
proteins.
d)
chromosomes.
39.
Humans produce sex cells through a process called
a)
cytokinesis.
b)
mitosis.
c)
meiosis.
d)
binary fission.
40.
The passing of traits from parents to offspring is
a)
heredity.
b)
recessive.
c)
probability.
d)
meiosis.
41.
Two forms of the same gene are known as
a)
sex cells.
b)
alleles.
c)
genotypes.
d)
chromosomes.
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