Worksheets7.L.2.3 Genetics
Total questions: 20
Worksheet time: 15mins
Scientists have recently discovered a gene that contributes to obesity. Would people expressing this gene likely have any control over their body weight?
no, because only genes determine body weight
no, because genes cannot influence things like body weight
yes, because genes cannot influence things like body weight
yes, because behavior plays a role, along with genetics, in determining body weight
Which factor could most likely cause skin cancer in a young adult?
living in a low-altitude climate as a teenager
frequent sunburns occurring during childhood
frequent use of perfumed lotions as a teenager
living in an environment with lots of trees as a child
NASA recently conducted an experiment with identical twins, Scott and Mark Kelly. Scott lived in space for one year, while Mark stayed on Earth. After Scott returned to Earth, scientists observed many new differences between the brothers. Which statement best explains these differences?
Characteristics are only determined by DNA.
Characteristics are only determined by the environment.
Characteristics are determined by both DNA and the environment.
Characteristics are determined by neither DNA nor the environment.
Most humans are born with 46 chromosomes, but sometimes people have 47 chromosomes. Which is the most likely cause of this increase?
genetic disorder
infectious disease
environmental change
nutritional deficiencies
Which factor would most likely decrease the rate of disease within a population?
an increase in contact with vectors
an increase in healthy food options
an increase in the age of individuals
an increase in the number of individuals
What environmental influence is most likely to affect a person with severe asthma?
air pollution
water pollution
weathering and erosion
increased use of clean energy
Which disease can be considered both an inherited disease and one caused by lifestyle choices?
diabetes
cystic fibrosis
Down syndrome
Huntington′s disease
Which type of energy wave is known to mutate genes that are exposed to even very small doses?
gamma
microwaves
radio
X-rays
Which environmental factor is essential for the long-term health and survival of humans?
changing seasons
access to clean water
fresh fruits and vegetables
camouflage with surroundings
Through genetic testing, Joe learns that he is at risk for developing lung cancer. Which lifestyle choice likely puts Joe at the most risk?
A.
walking three miles each day
B.
smoking a pack of cigarettes each day
C.
cutting all liquids except for water from the diet
D.
eating a diet with a variety of meats, fruits, and vegetables
A town in New York was built over a hazardous waste dump. Which effect of living over a hazardous waste dump would be most harmful?
A.
the town′s underground water supply changing color
B.
the town’s crops becoming smaller and less plentiful than normal
C.
the town’s inhabitants experiencing increased diagnoses of cancer
D.
the town’s inhabitants having to tolerate the bad smell of the waste
Why does sickle cell anemia occur more often within certain human populations?
A.
It is an airborne, contagious disease.
B.
It is a mutation that is genetically inherited.
C.
It is caused by overgrowth of cancerous tumors.
D.
It is caused by exposure to environmental toxins.
Which food choices are most likely to have a negative impact on the heart health of humans?
A.
diets high in fatty meats and fried foods
B.
diets high in fresh fruits and vegetables
C.
diets high in complex carbohydrates
D.
diets high in whole grains and fish
A person with diabetes had significantly lower blood sugar after three months. Which lifestyle change is most likely to reduce blood sugar levels?
A.
eating a more balanced diet with increased proteins and decreased carbohydrates
B.
eating a more balanced diet with decreased proteins and increased carbohydrates
C.
drinking more water and eating only carbohydrates
D.
drinking only drinks sweetened with sugar
Tom is a lifeguard who sits outside in the sun all day. He never wears sunscreen. How is this behavior most likely to affect him in the future?
A.
He could develop asthma.
B.
He could develop skin cancer.
C.
He could develop heart disease.
D.
He could develop sickle cell anemia.
Person X and person Y both smoked the same brand and amount of cigarettes for 20 years. Person Y develops lung disease while person X does not. Which statement best compares both people?
C.
The genetic makeup of person X allowed for a lower tolerance to chemicals in tobacco than person Y.
Person X is a man and thus more likely to develop lung disease.
Person X is a woman and thus more likely to develop lung disease.
The genetic makeup of person X allowed for a higher tolerance to chemicals in tobacco than person Y.
Parents are exposed to hazardous chemicals. How might this affect their future offspring?
A.
The offspring could have red hair.
B.
The chemicals could make the parents more fertile.
C.
The offspring could inherit damaged DNA from the parents.
D.
The chemicals could make the parents sick before they have offspring.
An organism’s traits are largely determined by the genetic makeup of its parents. A mutation in which kinds of cells in a parent could cause a new trait to appear in the parent’s offspring?
A.
sperm or egg
B.
egg or nerve
C.
nerve or muscle
D.
muscle or sperm
Below are some influences on a person's quality of life:
Influences on the Quality of Life
1: inheriting genetic diseases
2: using tobacco products
3: eating healthy food
4: drinking clean water
Which is LEAST controlled by human behavior?
1
2
3
4
Rat snakes, Elaphe obsoleta, are a species made of many distinct populations in different areas. Each of the populations has different markings and colorings. Where would rat snakes MOST likely be gray?
A.
in a forest
B.
in a swamp
C.
in a gravel pit
D.
in a corn field
