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WorksheetsGenetics
Total questions: 70
Worksheet time: 51mins
Name
Class
Date
1.
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%
2.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
3.
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
4.
If a body cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
5.
What phase is shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
6.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
7.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
8.
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
9.
Where are the proteins made?
a)
DNA
b)
nucleus
c)
ribosome
d)
mitochondria
10.
Carries the genetic code to the ribosome
a)
mRNA
b)
tRNA
c)
rRNA
d)
DNA
11.
Any change in the sequence of DNA nucleotides or chromosomes is called a
a)
mutation
b)
single genotype
c)
monohybrid trait
d)
transgenic shift
12.
Which of the following is the blueprint for the production of RNA within a cell?
a)
DNA
b)
protein
c)
ATO
d)
carbohydrate
13.
The DNA sequence ATCAGCGCTGGC is part of a gene. How many amino acids are coded for by this message?
a)
4
b)
8
c)
12
d)
20
14.
What is the relationship between a protein, the cell, and DNA?
a)
DNA is produced by protein which is produced in the cell
b)
Protein is composed of DNA which is produced in the cell
c)
DNA controls the production of protein in the cell
d)
A cell is composed of DNA and protein
15.
Genetic info flows in one direction. Which best represents this flow?
a)
DNA-protein-RNA
b)
Protein-RNA-DNA
c)
RNA-protein-DNA
d)
DNA-RNA-protein
16.
Which of the following is incorrect regarding RNA?
a)
RNA contains uracil
b)
RNA can only be found inside the nucleus
c)
RNA is single stranded
d)
RNA contains genetic information
17.
What nitrogen base is in DNA but NOT RNA?
a)
uracil
b)
thymine
c)
guanine
d)
adenine
18.
Which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
19.
Watson and Crick were the first to suggest that DNA is _____
a)
a short molecule
b)
the shape of a double helix
c)
a protein molecule
d)
the genetic material
20.
Which series is arranged in order from largest to smallest in size?
a)
chromosome, nucleus, cell, DNA, nucleotide
b)
cell, nucleus, chromosome, DNA, nucleotide
c)
nucleotide, chromosome, cell, DNA, nucleus
d)
cell, nucleotide, nucleus, DNA, chromosome
21.
Franklin used x-ray crystallography to determine the shape of the DNA molecule is
a)
a cloverleaf
b)
a braided rope
c)
a pleated sheet
d)
a twisted ladder
22.
the process of making a copy of DNA
a)
transcription
b)
double helix
c)
DNA replication
d)
replication fork
23.
(deoxyribonucleic acid); genetic material that organisms inherit from their parents.
a)
RNA
b)
DNA
c)
deoxyribose
d)
double helix
24.
An enzyme that unwinds the double helix of DNA and separates the DNA strands in preparation for DNA replication
a)
DNA polymerase
b)
RNA polymerase
c)
nucleotide
d)
helicase
25.
Which of the following terms means nuclear division?
a)
interphase
b)
mitosis
c)
cytokinesis
d)
cell cycle
26.
Genetically identical offspring come from ____ reproduction
a)
asexual
b)
sexual
27.
What phase is represented by letter A?
a)
Anaphase
b)
Metaphase
c)
Prophase
d)
Telophase
28.
What phase is represented by letter C?
a)
Anaphase
b)
Metaphase
c)
Prophase
d)
Telophase
29.
What phase is represented by letter E?
a)
Anaphase
b)
Metaphase
c)
Prophase
d)
Telophase
30.
What is a phenotype?
a)
The expression of a trait; physical appearance.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
31.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
32.
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
33.
Two heterozygous (Tt)tall pea plants are crossed. Which describes their offspring?
a)
50% tall and 50% short
b)
75%tall and 25% short
c)
100%short
34.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
35.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
36.
What determines gender in humans?
a)
the X and Y chromosome
b)
chromosome 21
c)
codominance
d)
epistasis
37.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
38.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
39.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
40.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
41.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
42.
I have 1 X chromosome and 1 Y chromosome. What am I?
a)
Male
b)
Female
43.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
44.
Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?
a)
height
b)
the scar
c)
ability to swim
d)
ability to play drums
45.
Who is more likely to be affected by a sex -linked disease such as colorblindness
a)
male
b)
female
c)
both
46.
One of a number of different forms of a gene.
a)
gene
b)
gamete
c)
fertilization
d)
allele
47.
A sex cell that has half the amount of DNA that is found in a body cell.
a)
gene
b)
gamete
c)
fertilization
d)
allele
48.
Process in sexual reproduction in which male and female reproductive cells join to form a new cell.
a)
gene
b)
gamete
c)
fertilization
d)
allele
49.
What is the likelihood that a specific event will occur?
a)
Probabilty
b)
Chance
c)
Ratio
d)
Test cross
50.
Which cellular process is shown?
a)
meiosis
b)
endocytosis
c)
mitosis
d)
phagocytosis
51.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
52.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
53.
What phase is shown in the picture?
a)
metaphase 2
b)
metaphase 1
c)
anaphase 1
d)
prophase 2
54.
tongue rolling
a)
genetic
b)
learned
55.
The sex of an offspring is determined by ______________________.
a)
the mother
b)
the father
c)
the mother and the father
d)
by the environment
56.
In a Punnett square each box represents a(n)....
a)
offspring
b)
parent
c)
gene
d)
trait
57.
What do you call a section of DNA that codes for a specific trait?
a)
nucleus
b)
chromosome
c)
gene
d)
DNA
58.
Where is DNA located?
a)
only in the brain
b)
the nucleus
c)
only in plant cells.
d)
in TrNA
59.
An example of a phenotype...
a)
sunlight
b)
gravity
c)
personality
d)
curly hair
60.
You have 46 of these in your nucleus.
a)
genes
b)
genotypes
c)
chromosomes
d)
phenotypes
61.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
62.
Which sequence of DNA bases would pair with this partiaal strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
63.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
64.
Genetically diverse offspring come from ____ reproduction.
a)
asexual
b)
sexual
65.
Cancer is a disorder in which cells have lost their ability to control their
a)
size
b)
growth rate
c)
spindle fibers
d)
surface area
66.
Which type of tumors are cancerous?
a)
benign
b)
malignant
67.
What phase is represented by letter B?
a)
Anaphase
b)
Interphase
c)
Metaphase
d)
Prophase
68.
What phase is represented by letter D?
a)
Anaphase
b)
Metaphase
c)
Prophase
d)
Telophase
69.
In a DNA molecule, if there are 5 adenines, thre should be _______________ thymines.
a)
10
b)
5
c)
2.5
d)
cannot tell
70.
An offspring that is homozygous dominant could be represented by...
a)
AA
b)
Aa
c)
aa
d)
none of these
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