In Ptolemy's View of the Universe, a Planet Moves on an Epicycle

question 62

Multiple Choice

In Ptolemy's view of the universe, a planet moves on an epicycle whose center moves around the Earth on the deferent circle.

• A) Correct
• B) FALSE; Ptolemy put the sun at the center.
• C) FALSE; The planet stays on the deferent circle.
• D) FALSE; Earth is at the center of the epicycle.
• E) FALSE; Both c and d are correct.

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Definitions:

Sex-linked

Referring to traits or disorders that are determined by genes located on the sex chromosomes, often resulting in differing patterns of inheritance in males and females.

Sex-linked Recessive Disorders

Genetic disorders caused by mutations in genes on the sex chromosomes, often more common in males because they have only one X chromosome.

Duchenne Muscular Dystrophy

A genetic disorder characterized by progressive muscle degeneration and weakness due to the absence of dystrophin, a protein that helps keep muscle cells intact.

Chromosome Distribution

The process by which chromosomes are allocated to daughter cells during cell division, ensuring genetic material is accurately passed on.