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WorksheetsTrait Variation and Genetic Tech Review
Total questions: 40
Worksheet time: 21mins
Mutations passed on from parents to offspring are _ mutations.
acquired
trait
inherited
autosomal
The pair of sex chromosomes that determine a person's sex is female
XX
YY
XY
XXY
The pair of sex chromosomes that determine a person's sex is male
XX
YY
XY
XXY
A mutation can occur during an organism's life or received from a parent.
True
False
Mutations that happen during the organism's life, likely from the environment, are _ mutations.
acquired
trait
inherited
autosomal
The first 22 sets of chromosomes (labeled 1-22) are called
mother's chromosomes
autosomal chromosomes
sex chromosomes
father's chromosomes
The last 2 chromosomes in the 23rd pair (labeled XY or XX) are called
mother's chromosomes
autosomal chromosomes
sex chromosomes
father's chromosomes
Out of your 23 pairs of chromosomes, how many pairs are sex chromosomes
0
3
1
Which of the following do you know is true about this person by analyzing their karyotype (the picture of their complete set of chromosomes)?
Their sex is female
Their sex is male
They received an extra chromosome from mom
They are missing a chromosome
Differences between individuals of a species
variations
autosomal traits
mutagens
homologous traits
The sequence of DNA nitrogen bases code for the _ that build your traits.
mutagens
proteins
DNA
nucleus
What happens if the sequence of bases on DNA are changed by a chemical?
a mutation that may code for the wrong amino acid
it is impossible for this to happen
people are not able to survive if this happens
a clone is created
You received _ chromosomes from your mother and _ chromosomes from your father.
23
46
11
22
The _ chromosome is 3 times larger than the other sex chromosome.
X
Y
A _ is a change in the DNA of a gene or chromosome
trait
protein
mutation
disease
Harmful chemicals and radiation are called ___ and can cause mutations.
proteins
diseases
mutagens
synthetic
Mutations can occur at any point during an organism's life.
True
False
What are the three types of gene mutations?
Addition, Deletion, Substitution
Autosomal, Deletion, Somatic
Inversion, Duplication, Insertion
Insertion, Multiplication, Division
Correct DNA sequence: TTA-CGC-AAG Mutated DNA sequence: TT-CGC-AAG. This is an example of a _ mutation.
Substitution
Deletion
Addition
Inversion
Correct DNA sequence- GAG-CTC-GAC Mutation: GAG-CTC-CAC. This is an example of a _ mutation.
No mutation
Substitution
Addition
Deletion
In this type of mutation, one extra base pair is added into a sequence of DNA
Substitution
Addition
Deletion
This cannot happen
Which of the following images below is a DELETION mutation of this sequence?
Some mutations can be helpful to the organism.
True
False
All mutations are harmful.
True
False
An animal being able to camouflage like its parents to escape predators has this _ mutation.
helpful inherited
harmful acquired
neutral inherited
neutral acquired
A person with skin cancer from too much exposure to the Sun's UVA radiation has a _ mutation.
harmful inherited
harmful acquired
helpful acquired
neutral inherited
Different eye colors in humans result from changes in the DNA sequence. This is an example of a _ mutation.
harmful inherited
helpful acquired
neutral inherited
neutral acquired
Mutations help create genetic diversity (making organisms in a species more different)
True
False
Sex-linked mutations occur...
Only on the X or Y chromosomes
On any of the 46 chromosomes
Only on the Y chromosome
Only in females
Physically removing mutations from the DNA and replacing them with "good" copies of the gene to correct mutations and genetic disorders
Karyotype
Gene therapy
Selective breeding
Cloning
The process of selecting a few organisms with desired traits to serve as parents of the next generation.
Gene Therapy
Natural Selection
Selective Breeding
DNA Technology
An example of selective breeding is
a dog breeder mating 2 dogs to make more dogs
a farmer grows bees to pollinate the plants on his farm
a person pollinates 2 red rose plants because they only want red roses
Gene therapy is used for...
making a person better at cooking
making an exact copy of an organism
treating genetic disorders or mutations
creating genetic disorders
How could cloning affect genetic diversity in a species (how different organisms are from each other)?
It would not affect genetic diversity at all
It decreases genetic diversity
It increases genetic diversity
Which technology can compare DNA from multiple people to find out if they are related.
Selective Breeding
Gene Therapy
Cloning
DNA Technology
Which technology analyzes a person's DNA to find genetic mutations and diagnose genetic disorders?
Cloning
Natural Selection
Selective Breeding
DNA Technology
When using selective breeding with cows, which trait would most likely be considered a "desirable trait"?
Cows that grow larger
Cows that have smaller ears
Cows that cannot produce milk
Cows that cannot reproduce
In which ways can genetic technology improve crops?
Make them pest or drought resistant
Make them more nutritious
Make them larger
All options are correct
