Two Events Occur Simultaneously on the X Axis of Reference

question 56

Multiple Choice

Two events occur simultaneously on the x axis of reference frame S,one at x =+a and the other at x = +a. According to an observer moving in the positive x direction:

• A) the event at x = +a occurs first
• B) the event x =+a occurs first
• C) either event might occur first, depending on the value of a and the observer's speed
• D) the events are simultaneous
• E) none of the above

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Definitions:

Phenotype

The set of observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.

Allele

A variant form of a gene that arises by mutation and is found at the same place on a chromosome.

Genotype

The genetic makeup of an organism, composed of both visibly expressed and non-expressed genes.

Gamete

An adult haploid germ cell from either male or female that can merge with one from the opposite gender during sexual reproduction to create a zygote.