The Offspring of Two Heterozygous Gray-Bodied, Normal-Winged Flies Should Be

question 72

Multiple Choice

The offspring of two heterozygous gray-bodied, normal-winged flies should be 50% gray-bodied/normal wings (BbRr) and 50% black-bodied/vestigial wings (bbrr) because these alleles are linked.If a small number, say 15%, of the offspring are instead black-bodied with normal wings, this is most likely the result of:

• A) crossing-over.
• B) incomplete dominance.
• C) codominance.
• D) an error in meiosis.
• E) mutation.

---

Definitions:

Attention-Deficit/Hyperactivity Disorder

A neurodevelopmental disorder characterized by a pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development.

Personality Disorder

A mental condition marked by persistent unhealthy patterns of thinking, behaving, and feeling that are displayed in various situations and differ from what is considered normal by the person's cultural standards.

Depression

A condition of mental health defined by an ongoing state of depression or a decrease in pleasure in activities, significantly affecting daily activities.

Panic Attacks

Sudden and intense feelings of fear or discomfort, often with physical symptoms such as rapid heartbeat and sweating.