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WorksheetsHuman Traits Quiz
Total questions: 21
Worksheet time: 11mins
Which trait involves the ability to roll the tongue?
Detached earlobes
Hitchhiker’s thumb
Tongue rolling
Freckles
What is the term for having a thumb that bends backward at the joint?
Right-handed
Hitchhiker’s thumb
Cleft chin
Widow’s peak
What is the term for a chin with a noticeable dimple or indentation?
Detached earlobes
Cleft chin
Widow’s peak
Freckles
Which trait involves having small, brownish spots on the skin?
Freckles
Dimples
Cleft chin
Hitchhiker’s thumb
What is the structure of DNA that holds genes?
Single strand
Double helix
Triple helix
Quadruple strand
Where is lactose commonly found?
Fruits
Dairy products
Vegetables
Grains
What is the function of lactase in the digestive system?
To store energy
To break down lactose
To build muscle
To absorb water
Where does lactase break down lactose in the body?
Small intestine
Large intestine
Stomach
Liver
Where is a normal lactase gene found?
In the liver
In the person's DNA
In the stomach
In the pancreas
What does the body use the lactase gene to produce?
Large amounts of glucose
Small amounts of the enzyme lactase
Large amounts of galactose
Small amounts of insulin
What enzyme is not produced in a person with lactose intolerance?
Lactase
Amylase
Protease
Lipase
What happens to lactose in the small intestine of a person with lactose intolerance?
It feeds bacteria that produce gas and acid
It is fully digested
It is absorbed into the bloodstream
It is converted into glucose
What is a mutation?
A change to a genetic code
A type of cell division
A form of energy
A chemical reaction
When can mutations occur?
When DNA is being copied or exposed to a mutagen
Only during cell division
When proteins are synthesized
During photosynthesis
What are mutagens?
Things that cause mutations
Types of cells
Forms of DNA
Types of proteins
What can a mutation in the genetic code change?
The color of the organism
The instructions for making a particular protein
The size of the cell
The number of chromosomes
What might happen if a protein can no longer be made due to a mutation?
The organism will grow faster
The protein might not function properly
The organism will change color
The cell will divide more rapidly
What is a substitution mutation?
When one base is replaced by another
When a base is deleted
When a base is added
When a sequence is reversed
In the context of DNA mutations, what does the term "normal" refer to?
A sequence with no mutations
A sequence with a substitution
A sequence with a deletion
A sequence with an insertion
Which of the following is an example of a substitution mutation?
ATG changes to ATT
ATG changes to ATGC
ATG changes to AG
ATG changes to GTA
What is an insertion mutation?
When one base is removed from the sequence
When one base is replaced in the sequence
When one base is put into the sequence
When two bases are swapped in the sequence
