What Do All Fossils Represent

question 29

Multiple Choice

What do all fossils represent?

• A)transitions
• B)dead-end species
• C)an inability to adapt to changing local environments over time
• D)a new evolutionary lineage

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Definitions:

Genomic Imprinting

The instance when the expression of a gene is determined by whether it is inherited from the mother or father.

Crossing Over

The process during meiosis in which homologous chromosomes exchange portions of their DNA, leading to genetic recombination.

Heritability

The statistic that indicates the extent to which variation of a certain trait can be traced to genes.

Mutation

A change in the DNA sequence of an organism's genome, which can lead to genetic variation and sometimes result in observable changes in the organism.