WorksheetsQuick Check - Natural Selection and Mutations
Total questions: 13
Worksheet time: 8mins
What is an inherited trait?
A skill that is developed through practice
A characteristic determined by an organism's genes
an organism's place in the food web
an organisms relationship to its parents
When is a trait most likely to be passed on to the next generation?
When it serves no purpose
When it becomes an advantage to the organism's survival
When it gives the organism a lot of water
When it prevents the organism from finding a mate
In the phrase "survival of the fittest," the term "fittest" refers to:
The best-adapted organisms
The biggest organisms
The smartest organisms
The fastest organisms
When nature "selects" a variation, that means that the trait:
Gets passed along from generation to generation
Causes the population to shrink
Has brought about a new species
Helps prey escape predators
Mutations are a change in what?
DNA
tRNA
protein
rRNA
Due to genetic inheritance, members of a species can be slightly different from another in their traits. This is known as...
Variation
Overproduction
Competition
Evolution
Mutations are__________
Harmful
Harmful or beneficial
Neutral
Harmful, neutral, or beneficial
Mutations that cause dramatic changes in protein structure are often
harmful
helpful
neutral
Can DNA mutations(changes) be passed on to offspring?
yes
no
Peppered moths show variation in their color, with some being dark and some being light. What causes this variation?
It depends on the environment they live in
The dark-colored moths will survive better in dark environments
Light-colored moths have a harmful mutation
There was a random mutation in the gene for color
If a mutation is beneficial to an organism, this mutation is likely to...
increase in the population
decrease in the population
go extinct
have a harmful effect
