Describe Double Bar Mutations in Drosophila Melanogaster

question 26

Multiple Choice

Describe double Bar mutations in Drosophila melanogaster.

• A)large deletion in the X chromosome
• B)a female fly with only one X chromosome
• C)an X chromosome with two duplications of the 16A region
• D)duplications in a portion of the X chromosome
• E)an inversion heterozygote of the X chromosome

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Definitions:

Cohort Effects

Also called history-graded events, they are events that provide a context for development and also influence it directly. The year of your birth marks your entry into a cohort of peers who accompany you through age-graded developmental changes within the context of a specific set of historical events.

Life-Course Perspective

The view that development is influenced by the intersection of chronological age (life time), family-related (family time), and membership in a birth cohort (historical time).

Developmental Influences

Various factors that impact an individual's growth and maturation across the lifespan, including genetic, environmental, and societal elements.

Historical Events

Significant occurrences in the past that have contributed to the shaping of societies, cultures, and the world at large.