You are a biologist working with a cell culture.You notice that the chromosomes are decreasing in size with each cell division.Other than that, the cells seem healthy.What is the most likely explanation?
A) Too much DNA ligase is being produced.
B) Too little DNA ligase is being produced.
C) Too much telomerase is being produced.
D) Too little telomerase is being produced.
E) Too little DNA helicase is being produced.

Question

Quizplus · Accepted Answer

Telomerase is responsible for maintaining the length of telomeres, which protect the ends of chromosomes from deteriorating or fusing with neighboring chromosomes. As chromosomes go through each cell division, a portion of the telomere is lost, resulting in shorter telomeres. If too little telomerase is produced, then the telomeres of chromosomes will become progressively shorter with each cell division, which is likely what is happening in this case.

You Are a Biologist Working with a Cell Culture