Mutations
What is a mutation?
A) A change in DNA sequence
B) A change in protein shape
C) A change in organism's behavior
A) A change in DNA sequence
Which technology allows precise editing of genes?
A) PCR
B) CRISPR
C) Cloning
B) CRISPR
How does sexual reproduction affect genetic variation (differences)?
A) Increases
B) Decreases
C) No change
A) Increases
What does a Punnett square help predict?
A) Only Physical traits
B) Genetic disorders
C) Genetic variations
C) Genetic variations
Which process involves humans choosing desirable traits in organisms?
A) Natural Selection
B) Artificial Selection
B) Artificial Selection
Which of the following can be a result of a mutation?
A) Harmful effect
B) Beneficial effect
C) Neutral effect
D) All of the above
D) All of the above
What is the main benefit of genetic engineering in crops?
A) Increased size
B) Pest resistance
C) Faster growth
B) Pest resistance
In sexual reproduction, offspring inherit how much DNA from each parent?
A) 25%
B) 50%
C) 75%
B) 50%
Dominant traits are expressed over:
A) Recessive traits
B) Mutations
C) Environmental factors
A) Recessive traits
How long can artificial selection take to show results?
A) Days
B) Years
C) Centuries
C) Centuries
Where do most mutations occur?
A) In proteins
B) In DNA
C) In cells
B) In DNA
Artificial selection primarily affects organisms by changing their:
A) Natural habitat
B) Inherited traits
C) Behavior
B) Inherited traits
Which reproduction type results in identical offspring?
A) Asexual
B) Sexual
A) Asexual
The physical appearance of an organism is known as:
A) Genotype
B) Phenotype
C) Chromotype
B) Phenotype
What are examples of artificial selection?
A) Corn, Mustard Greens, Dogs
B) Finches, Giraffes and Whales.
A) Corn, Mustard Greens, Dogs
Mutations that make it challenging for an organism's survival are called?
Genetic engineering allows for:
A) Faster breeding
B) Precise DNA changes
B) Precise DNA changes
Asexual reproduction results in
Identical offspring
In guinea pigs, short hair, S, is dominant to long hair, s.
One guinea pig is Ss and one is ss. Expected number of offspring: ____ Short hair (SS or Ss) ____ Long hair (ss)
__50%__ Short hair (SS or Ss) _50%___ Long hair (ss)
Nature selects traits in:
Natural selection
Mutations that improve an organism's survival are called?
Answer: Beneficial
Cloning creates:
Identical copies
Sexual reproduction involves combining DNA from:
Two parents
In guinea pigs, short hair, S, is dominant to long hair, s.
Both guinea pigs are heterozygous for short hair. Expected number of offspring: ____ Short hair ____ Long hair
Expected number of offspring: __75%__ Short hair __25%__ Long hair
Bonus: Mr. Avolos talked about 4 scientists. Name one.
Charles Darwin
William Harvey
Issac Newton
Sigmund Freud