In Neurospora, the White-Spore Allele (Ws) Results in White Spores

question 52

Multiple Choice

In Neurospora, the white-spore allele (ws) results in white spores rather than the wild-type black spores. Diploid ws / ws+ cells undergo meiosis followed by one round of mitosis to form ordered tetrads. Indicate if the pattern of spores seen in the tetrads are consistent with first-division or second-division segregation.
-ws^{+; ws+; ws+; ws+; ws; ws; ws; ws}

• A)first-division segregation pattern
• B)second-division segregation pattern

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Definitions:

Sequential

Pertaining to events, processes, or items that follow one after another in a specific order.

Longitudinal

A type of study or analysis that follows the same subjects over a period of time to observe changes or developments.

Cross-sectional

A type of observational study that analyzes data from a population, or a representative subset, at a specific point in time.

Erikson's Stages

A series of eight stages through which a healthily developing human should pass from infancy to late adulthood, each stage marked by a psychological crisis.