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WorksheetsDMS Genetics 2
Total questions: 47
Worksheet time: 51mins
This genetic disorder is caused by non-disjunction of the 21st chromosome. It is one of the most common chromosomal disorders. Non disjunction is when a chromosome moves in the wrong direction during meiosis.
Turner syndrome
Hunington Disease
Down syndrome
Myopia
This genetic disorder causes a reduction/absence of melanin in the skin, hair and eyes. Located on chromosome 6, this disorder is common throughout the animal kingdom.
Anemia
Albinism
Myopia
Hemophilia
Does this pedigree show a dominant or recessive pattern of inheritance?
Dominant
Recessive
Which pedigree is showing a RECESSIVE inheritance pattern?
What do the half shaded symbols in a pedigree represent?
Someone who doesn't have the trait
Someone who does have the trait
Someone who is a carrier of the trait
Humans with genetic diseases can have a healthy or normal gene inserted into their body using a virus. This is called:
Gene therapy
Cloning
DNA fingerprinting
Disease that caused the body to produce thick and sticky mucus that can clog the lungs and obstruct the pancreas.
hemophilia
cystic fibrosis
tay sachs
sickle cell anemia
Which type of genetic disorder is much rarer because even just 1 defective gene will create the disease?
dominant disorder
recessive
codominant
sex-linked
Why do sex-linked disorders affect men more than women?
males only have 1 X chromosome
males do not have an X chromosome
girls always have 2 defective X chromosomes
males only have Y chromosomes
How do genetic disorders happen ? Choose 2.
mutations of chromosomes
mistakes during meiosis
eating unhealthy
they are transmitted
_____________________ is a method used to identify an individual from a sample of DNA by looking at unique patterns in their DNA. This can be used to prove a criminal's guilt.
gene therapy
chromosomal therapy
gene mapping
DNA fingerprinting
Name 2 common uses for DNA testing.
genetic testing
convict criminals
for the human genome project
scientific research
If you create a Punnett Square using XX and XY chromosomes, how many offspring will be male?
One half
Three fourths
One tenth
One third
what chromosome(s) do males inherit from their fathers?
the X
Both the X and Y
the Y
Neither the X and Y
Where do daughters get their X chromosomes?
two from each parent
only from their fathers
one from each parent
only from their mothers
Some traits, including diseases, can be inherited on sex chromosomes.
True
False
Someone who isn't affected by a disease but who can pass the disease on to offspring is called
Infector
Carrier
a contagion
an ineffector
What allele combination could represent the carrier of a recessive sex-related trait?
XHXH
XHXh
XHY
XhY
What allele combination could represent a person who suffered from a recessive disease trait?
XBXB
XY
XbY
XBXb
One sex-linked disease causes people to bleed a lot from even a minor cut and is called
Down Syndrome
Hemophilia
Cataracts
Marfan's Syndrome
What parent can give male offspring hemophilia or any other sex linked disorder such as ALD?
the father only
the mother only
both parents
neither parent
In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X R X r ?
male with white eyes
female with red eyes
male with red eyes
female with white eyes
In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X R Y ?
male with white eyes
female with white eyes
male with red eyes
female with red eyes
By looking at the chromosomes how can you tell that this person is biologically female?
Because there are two X chromosomes
Because there are more chromosomes than in a male
What is the mutation in this persons chromosomes?
There is only one X
7 is shaped like a hockey stick
There's an extra 21
1 is too curved
This is called Turners syndrome, can you notice the mutation in the chromosomes?
Both chromosomes 1 are bent
There are too many chromosomes
There are too many of chromosome 3
There is no Y chromosome
These are the chromosomes of someone with Kleinfelters syndrome. What is different about their chromosomes?
There is only one Y chromosome
One of the 5th chromosomes is too curved
There is an extra X chromosome
There are too few chromosomes
This disorder is called "Cry of the cat", can you find the chromosomal mutation?
There are too many chromosomes
They are missing the Y chromosome
Chromosome 1 is bent
Chromosome 5 is too short (missing a piece)
Based on the karyotype, can you guess the name of this genetic disorder?
Curvy 3
Jacob's syndrome
Triple X
Superwoman syndrome
How many chromosomes a baby with born down syndrome will have?
44
46
45
47
Down Syndrome is also called ..
Trisomy 20
Trisomy 22
Trisomy 23
Trisomy 21
Males are more likely to show a sex- linked trait than females.
true
false
If a chromosome is NOT a sex chromosome like X or Y, then it is called an ____
body some
autosome
just a chromosome
sexosome
A display of all of the chromosomes in order of length that is used to determine the presence or absence of a genetic disorder is called a ____
raisotype
karyotype
autosomal type
super display
A breed of chicken shows incomplete dominance for feather color. One dominant allele codes for black feathers, another dominant allele codes for white feathers. The feathers of heterozygous chickens of this breed will be....
all black
all white
all gray
speckled black and white
Which of the following is a characteristic of Kleinfelter Syndrome? Choose all that apply.
low set ears
infertility
excessive muscle development
inability to swallow
Which of the following is not a characteristic of Trisomy 21?
Round face
cognitive delays
low set ears
likely heart defects
Cri du chat characteristics do NOT include...
drooling
poor larynx development
low set ears
extra 7th chromosome
Turner's Syndrome...
affects girls only
results from an egg cell missing its X chromosome that is fertilized by an X sperm
Poor problem solving skills
All of these are true.
