Genetics and Basics
DNA & Cells
Punnett Squares
Evolution & Adaptations
Scientific Skills
100
What type of Traits are passed down from parent to offspring
Traits determined by genetic information (Inherited traits)
100
Which base pairs with guanine?
Cytosine
100
A cross results in a 25% chance of recessive trait. What tool predicts this?
Punnett Square
100
What process causes organisms with helpful traits to survive and reproduce?
Natural Selection
100
In an experiment, what variable is changed by the scientist?
Independent variable
200
What term describes the passage of genetic instructions from one generation to the next?
Heredity
200
What are the four nitrogen bases in DNA?
Adenine, Thymine, Cytosine, Guanine
200
If B is dominant and b is recessive, which genotype shows the recessive trait?
bb
200
What term means change in species over time?
Evolution
200
What variable is measured during the experiment?
Dependent variable
300
What term describes the genes involved in a trait?
Genotype
300
What is the building block of DNA?
Nucleotide
300
What is the probability of heterozygous offspring in many simple crosses?
50%
300
What example shows environmental change affecting moth coloration?
Peppered moth example
300
What value do you find by adding all of the numbers together and dividing by the total number of numbers?
Mean
400
Hair color is an example of what type of trait expression?
Phenotype
400
What instrument uses lenses to make tiny things look larger?
Microscope
400
What does each square in a Punnett square represent?
A possible offspring genotype
400
What do helpful mutations do for organisms?
Increase chances of survival
400
What protective equipment helps prevent breathing harmful particles?
Mask
500
Which genotype is homozygous dominant?
AA
500
Which cell component stores genetic instructions for the organism?
DNA
500
If RR is crossed with rr, what phenotype appears if R is dominant?
Dominant trait
500
Why did finches develop different beak shapes?
Adaptation to different food sources
500
What happens to plants when a blocking tree is removed?
They receive more light