What Are the Two Most Important Contributors to Height Differences

question 102

Multiple Choice

What are the two most important contributors to height differences among children all over the world?

• A) nationality and culture
• B) education and exercise
• C) prenatal care and emotional challenges
• D) ethnic origin and nutrition

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Definitions:

Crossing Over

A process during meiosis in which homologous chromosomes exchange portions of their chromatids, leading to genetic variation.

Cleavage Furrow

A constricted region of the cytoplasm that forms and progressively deepens during cytokinesis of animal cells, thereby separating the two daughter cells.

Crossing-over

The process of exchange of genetic material between homologous chromosomes during meiosis, leading to genetic variation.

Prophase I

The first stage of meiosis I where chromosomes condense, homologous chromosomes pair up, and crossing over occurs.