Which of the Following Is Not a Derivative of Ectoderm

question 22

Multiple Choice

Which of the following is not a derivative of ectoderm?

• A) Salivary glands
• B) The nervous system
• C) The epidermis
• D) Cutaneous glands
• E) The dermis

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Definitions:

Noninvasive Prenatal Testing

A screening method that analyzes fetal DNA in the mother's blood to assess the risk of certain genetic disorders.

Canalized Traits

Characteristics or attributes of an organism that are genetically controlled to follow a narrow range of development, regardless of environmental conditions.

Incomplete Dominance

A genetic phenomenon in which a dominant allele does not completely mask the effects of a recessive allele, resulting in a third, often blended phenotype.

Heterozygous

A genetic condition where an individual has two different alleles at a gene locus.