a. the center spindle that a compact disk fits around while in case.
b. the two ends of a shoe lace
c. the pull tabs on a soft-drink can
d. the correct letters used to replace errors in a document after they have been deleted in a word processor
e. the mechanism of a zipper that allows the separated parts to be joined
Pick the best that apllies. Multiple Choice Question
2007-01-17 12:19:36 · 4 answers · asked by iqbalkhanayesha 2 in Science & Mathematics ➔ Biology
I'd say B b/c telomeres are at the ends of DNA, and they're "junk" DNA that doesn't really code for anything, but act as a buffer, sort of. Everytime DNA is copied, a bit of the telomeres are uncopied (b/c primers need someting to "grab onto"), so they get shorter over time.
Those are really strange and confusing analogies...
2007-01-17 18:45:34 · answer #1 · answered by rosemary 2 · 1⤊ 0⤋
more like the last 2" of a pencil... It is an extention of the rest not used to write with, but rather just to hold on to while writing, and is thrown away after the rest of the pencil is used.
A, D, or E but the analogy depends on the person making it. It is poorly worded, but I could make aguments for all 3, A being the weakest.
The key feature not addressed in any of the answers is the fact that as the cell replicates the telomeres get shorter until the DNA is no longer viable. is is the cell doomsday device which may be an inhibitor to cancerous growth.
They are all bad answers, but I would guess D.
I'm making it up as I go along...
What did the teacher say in class? were you cutting class that day?
2007-01-17 20:30:45 · answer #2 · answered by Truth be Told 3 · 0⤊ 0⤋
Telomeres are short segments of DNA on the ends of the chromosomes that control the number of times a cell can divide.
Now answer your question.
BIOLOGY TEACHER
2007-01-17 20:30:06 · answer #3 · answered by CAROL P 4 · 0⤊ 0⤋
... Good answers from first two posters - also ...
Telomeres keep the ends of the chromosomes from unraveling.
2007-01-17 20:38:42 · answer #4 · answered by ecolink 7 · 0⤊ 0⤋