Direction of Shell Coiling in the Snail Lymnaea Peregra Is

question 20

Multiple Choice

Direction of shell coiling in the snail Lymnaea peregra is conditioned by a form of extrachromosomal inheritance known as ____.

• A)sex- linked inheritance
• B)maternal effect
• C)epistasis
• D)heteroplasmy
• E)independent assortment

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Definitions:

School Performance

The measurement of a student's academic achievement based on grades, tests, and other criteria.

Glass Ceiling

An invisible barrier preventing minorities and women from rising to upper levels of management or leadership despite their qualifications.

Top-down Barrier

Obstacles to progress or communication that originate from higher levels in a hierarchical structure, affecting those at lower levels.

Occupational Advancement Bias

The unequal opportunity for promotion or advancement in a workplace, often influenced by gender, race, or other personal characteristics rather than merit or abilities.