In cell biology, what does the word queue describe? the short arm of a chromosome the long arm of a chromosome the center of a chromosome the material of a chromosome
The Correct Answer and Explanation is:
In cell biology, the word queue does not describe any part of a chromosome. Among the choices given:
- the short arm of a chromosome
- the long arm of a chromosome
- the center of a chromosome
- the material of a chromosome
None of these are described by the word “queue” in standard biological terminology.
Explanation
In the context of cell biology, chromosomes are thread-like structures made of DNA and proteins (mainly histones), found in the nucleus of most living cells. They carry genetic information in the form of genes. Chromosomes have several identifiable parts:
- The short arm is labeled as p (from the French “petit”).
- The long arm is labeled as q (because it follows “p” in the alphabet).
- The center of a chromosome, where the two arms are joined, is called the centromere.
- The material making up the chromosome is chromatin, composed of DNA and protein.
It is likely that the word “queue” in the question is a misinterpretation or typo for “q arm”, which refers to the long arm of a chromosome. In this case, the correct answer would be:
the long arm of a chromosome
The q arm plays a crucial role in maintaining genetic stability and is essential for proper chromosome segregation during cell division. Like the p arm, it contains genes vital for normal cell function. Abnormalities in the q arm, such as duplications, deletions, or translocations, can lead to genetic disorders or contribute to cancer development.
In summary, while the term “queue” itself is not used in chromosome anatomy, if it’s mistakenly used in place of “q,” it refers to the long arm of a chromosome, making that the best-fitting answer among the options.
