A Study in Which Groups of Monozygotic and Dizygotic Twins

question 70

Multiple Choice

A study in which groups of monozygotic and dizygotic twins of the same sex are compared to each other and to other family members for similarity on a specific trait is called a(n) :

• A) kinship study.
• B) family study.
• C) twin study.
• D) adoption study.

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Definitions:

Poplar

A type of fast-growing tree belonging to the genus Populus, known for its softwood used in manufacturing and as an ornamental tree.

Sieve Element

A type of cell found within the phloem of vascular plants, responsible for transporting sugars and other nutrients throughout the plant.

Companion Cell

In phloem, cell that provides metabolic support to its partnered sieve element.

Source Region

An area where specific air masses form, characterized by its uniform temperature and humidity patterns influencing weather and climate.