-In a Drosophila Experiment,a Cross Was Made Between Homozygous Wild-Type

question 71

Multiple Choice

-In a Drosophila experiment,a cross was made between homozygous wild-type females and yellow-bodied males.All of the resulting F₁s were phenotypically wild type.However,adult flies of the F₂ generation (resulting from matings of the F₁s) had the characteristics shown in the figure above.Consider the following questions:
(a) Is the mutant allele for yellow body recessive or dominant?
(b) Is the yellow locus autosomal or X-linked?

• A)(a)recessive; (b)X-linked
• B)(a)recessive; (b)autosomal
• C)(a)dominant; (b)X-linked
• D)(a)dominant; (b)autosomal
• E)(a)co-dominant; (b)X-linked

Explain light and dark adaptation processes and the phenomena of afterimages.

Compare and contrast theories related to hearing and understand the significance of the volley principle.

Understand the role of binaural and monaural cues in sound localization.

Describe the significance of perceptual constancies and their effects on perception.

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Definitions:

Altitude

The height or elevation of a place above sea level, often affecting climate, oxygen availability, and physical exertion requirements.

Sensory Receptors

Specialized cells or nerve endings that respond to changes in the environment by converting energy from a specific stimulus into an electrical signal.

Auditory Tube

Also known as the Eustachian tube, it connects the middle ear to the nasopharynx and helps equalize pressure on both sides of the eardrum.

External Ear

Portion of the ear that includes the auricle and external acoustic meatus; terminates at the eardrum.