PATHOLOGY MCQ
CELL DAMAGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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46 as there is one telomere at the end of 46 chromosomes
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92 as there is one telomere at each end of 46 chromosomes
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92 as there is one telomere at the end of 92 chromatids
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184 as there is one telomere at each end of 92 chromatids
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Detailed explanation-1: -Our cells have 46 chromosomes. Each chromosome has 4 telomeres for a total of 184. Not all telomeres shrink at the same speed though. Some of them shorten faster than others, so some of our telomeres may be long while some of them may be short.
Detailed explanation-2: -Each of these chromatids will be capped with the telomere structure on either end (and a single centromere structure in the middle of each sister chromatid). Therefore, a single chromosome in metaphase would have four total telomeres, two on each sister chromatid.
Detailed explanation-3: -Which of the following statements are true regarding telomeres? Telomeres contain non-essential genes that are not necessary for cell survival. Telomeres are enzymes that repair telomerases (which cap the end of linear chromosomes).