Evolution & Natural Selection
This process describes how organisms with favorable traits are more likely to survive and reproduce.
What is natural selection?
The basic building blocks of DNA are called these.
What are nucleotides?
This occurs when an organism breaks into pieces and each grows into a new organism.
What is fragmentation?
This type of cell division produces two identical cells.
What is mitosis?
A random change in DNA is called this.
What is a mutation?
What is a mutation?
This phrase means organisms best suited to their environment survive and reproduce.
What is survival of the fittest?
Different forms of a gene are called this.
What is an allele?
When both alleles are fully expressed.
What is codominance?
This type of cell division produces four non-identical cells.
What is meiosis?
When humans choose traits in organisms, it is called this.
What is artificial selection?
A change in an organism that improves its chances of survival.
What is an adaptation?
A body part that no longer has a function but was useful in ancestors.
What is a vestigial structure?
When neither allele is completely dominant, resulting in a blend.
What is incomplete dominance?
Cells with two sets of chromosomes are called this.
What is diploid?
Another term for artificial selection used in agriculture.
What is selective breeding?
This type of evolution occurs when species evolve different traits from a common ancestor.
What is divergent evolution?
Structures that have similar functions but different structures.
What are analogous structures?
This law explains how genes separate during gamete formation.
What is the law of independent assortment?
Cells with one set of chromosomes are called this.
What is haploid?
This occurs when two species evolve in response to each other.
What is coevolution?
This process occurs when one species evolves into many different species.
What is adaptive radiation?
Structures that have similar anatomy but different functions.
What are homologous structures?
This law states that dominant traits mask recessive traits.
What is the law of dominance?
This process involves one cell splitting into two identical cells.
What is binary fission?
The overall process by which species change over time.
What is evolution?