Why are telomeres a necessary component of linear chromosomes? they maintain the length of a chromosome because dna is shortened
every time it is replicated. they direct where dna synthesis will end. none of the answer options is correct. they fix mistakes that are made during dna replication. they direct where dna synthesis will begin?
Telomeres are found at the end of chromosomes to protect
genes from reduction during replication
of chromosomes, especially during meiosis
or mitosis. They are composed of repetitive sequences
that do not code for protein. Telomeres become
reducted <span>especially due</span> to the inability of the lagging strand to be completely replicated to the end of the chromosome. However, while
the telomeres become shorted with every
replication, the telomeres are usually slightly elongated by telomerase reverse
transcriptase.
<span>Magnetic resonance imaging
is a technology that uses magnetic fields and radio waves to produce high
quality 2 or 3 dimensional images of the brain structure without using
radioactive tracers and ionizing radiation. The magnetic resonance intensity is
proportional to the density of the protons in various tissues.</span>
