There Is Disagreement Among Scientists About the Designation of Species

question 93

Multiple Choice

There is disagreement among scientists about the designation of species.They are often aligned as being "lumpers" or "splitters" in regards to fossil evidence.As presented in your text,all of the following are considered alternate fossil names for the same evidence except:

• A)H.erectus.
• B)H.ergaster.
• C)H.habilis.
• D)H.antecessor.
• E)H.heidelbergensis.

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Definitions:

Dominant Allele

The allele that is expressed when an individual possesses two different alleles for the same trait.

Recessive Allele

The allele that is not expressed when an individual possesses two different alleles for the same trait.

Carriers

Individuals who are heterozygous for a trait with a dominant and recessive allele and thus express only the characteristics associated with the dominant allele but may pass the recessive allele, including one for a recessive disorder, on to their offspring.

Different Alleles

Variants of the same gene that exist at the same locus on a chromosome but encode for different traits.