In Genetics, the Dash Symbol (-) Is a "Wild Card

question 43

Multiple Choice

In genetics, the dash symbol (-) is a "wild card" that stands for either the dominant allele or the recessive allele; for example, A- means the individual has either the genotype AA or Aa. Two genes that undergo independent assortment affect fruit shape in summer squash. Each gene has two alleles, one of which is dominant for fruit shape. Genotypes of the form A- B- have disc-shaped fruit, those of the form A- bb and aa B- have sphere-shaped fruit, and genotype aa bb has long fruit. What ratio of disc : sphere : long is expected from the cross Aa Bb × Aa Bb?

• A)10:3:3
• B)9:3:4
• C)12:3:1
• D)9:6:1

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Definitions:

Misinformation Effect

The misinformation effect occurs when a person's recall of an event becomes less accurate due to being exposed to misleading information about the event.

Misleading Information

Incorrect or false information that leads to incorrect perceptions or conclusions.

Memory of an Event

The process of recalling or retrieving details about past occurrences or experiences.

Source Amnesia

A memory disorder where an individual can recall certain information but is unable to remember where, when, or how they learned that information.