A Cross Was Made Between Homozygous Wild- Type Female Drosophila

question 21

Multiple Choice

A cross was made between homozygous wild- type female Drosophila and yellow- bodied male Drosophila.All of the resulting offspring were phenotypically wild type.Offspring of the F₂ generation had the following phenotypes: Based on this information,how is the yellow allele inherited?

• A)recessive,X linked
• B)sex- influenced inheritance
• C)recessive,autosomal
• D)dominant,X linked
• E)dominant,autosomal

---

Definitions:

Id

In Freudian psychoanalysis, the part of the mind that contains innate biological drives and instincts; operates based on the pleasure principle.

Freud

Sigmund Freud, an Austrian neurologist and the founder of psychoanalysis, a clinical method for treating psychopathology through dialogue.

Epigenetic Principle

A concept in Erikson's theory of psychosocial development that proposes growth and development are governed by the unfolding of our predetermined personality.

Maturation

The developmental progression that leads to gain in skills, knowledge, and capabilities, both physically and psychologically.