There Have Been ________ to ________ Ice Ages in Earth's

question 5

Multiple Choice

There have been ________ to ________ ice ages in Earth's history,with the latest one occurring in the ________.

• A)four;five;Pleistocene Period
• B)five;six;Pleistocene Period
• C)four;five;Proterozoic Era
• D)five;six;Cenozoic Era

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Definitions:

Polygenic

A term describing a trait or characteristic that is influenced by more than one gene, often resulting in a continuous range of possible phenotypes.

Codominant

A genetic scenario where two different alleles of a gene are both fully expressed in a heterozygous individual, leading to a phenotype that is a mixture or combination of both alleles.

Recessive

A genetic term referring to traits that are expressed only when two copies of a gene, one from each parent, are present.

Dominant

Refers to a trait, allele, or characteristic that overpowers or is more likely to be expressed than another in genetic inheritance.