An Eclipsing Binary Has Been Analyzed and It Has Been

question 102

Multiple Choice

An eclipsing binary has been analyzed and it has been determined that the ratio of the mass of star A to the mass of star B is 6 and the total mass of the two stars is 26 solar masses. What are the masses of star A and star B

• A)Star A has a mass of 1 solar mass and star B has a mass of 6 solar masses.
• B)Star A has a mass of 20 solar mass and star B has a mass of 6 solar masses.
• C)Star A has a mass of 31.2 solar mass and star B has a mass of 5.2 solar masses.
• D)Star A has a mass of 22.3 solar mass and star B has a mass of 3.7 solar masses.
• E)The masses of star A and star B cannot be determined from the information given.

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Definitions:

Dosage Compensation

A genetic mechanism that balances the dose of X chromosome gene expression between males and females in some species.

Nondisjunction

An error in cell division where chromosomes do not separate properly, leading to gametes with an abnormal number of chromosomes, potentially causing genetic disorders.

Abnormal Cells

Cells that have experienced changes in structure or function, often associated with diseases or conditions.

Nonhomologous Chromosome

Chromosomes that are not matching or similar in structure and gene composition; typically refers to the chromosomes that are not sex chromosomes.