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kumpel [21]
3 years ago
10

7. The increased levels of telomerase associated with many tumor cells likely promote cancer by: A) enhancing levels of DNA repa

ir so that cells remain normal and have stable genomes and thus would be able to replicate their DNA and divide more often. B) promoting the efficiency of the spindle-assembly checkpoint. C) reducing the expression of several oncogenes. D) decreasing the number of epigenetic changes that would promote cancer. E) allowing cells to continue to divide when nor
Biology
2 answers:
Lunna [17]3 years ago
8 0

Answer:

The increased levels of telomerase associated with many tumor cells likely promote cancer by E) allowing cells to continue to divide when normally chromosomes should shorten beyond a point where division would be no longer possible

Explanation:

Telomerase is an enzyme that enables cells to stay its genome and be healthy. Increased levels of telomerase allow cells to have more divisions and more mutations, having as a result incomplete information for cells, becoming them cancer cells. When it is possible to inhibit this enzyme, telomers get shorter and cancer cells might die.

Akimi4 [234]3 years ago
7 0

Completed option E

allowing cells to continue to divide when normally chromosomes should shorten beyond a point where division would be no longer possible

Answer:

E

Explanation:

Telemerase  is a reverse transcriptase enzymes that maintains the length of telemoeres. The later is a repetitive nucleotide sequence of a chromosomes that  stabilizes  the end of the chromosomes from deteriorating and possible fusion with adjacent chromosomes.  its length decreases with each cell division, but replenished by enzymes telemerase.

Telomeres undergo  division to protect the removal  of the  gene portion  located ahead of them on the chromosomes.They are protected by protein Shelterin,

In  Cancer cells, telemere length is increased thus cells undergo prolong cell division which leads to multiple cells production.  Therefore if  telomerase concentration is increased, the telomeres will be replenished after each cell division, by this enzyme. its length will increase, and consequently more tumor cells will be produced.

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Help me please!!! I need this
Alenkasestr [34]

Answer:

The correct answer is - option A. 1 (ovary).

Explanation:

Oocytes or egg are produced in the ovaries during the process of the female gametogenesis in female reproductive system. Ovaries are located on each side of the uterus that are oval and small in shape and size and located lower abdomen.

Among other female reproductive organs these are located above others. The ovaries produce oocytes and hormones It is the site at which primordial germ cell (PGC), become primary oocytes.

Thus, the correct answer is - option A. 1 (ovary).

7 0
3 years ago
Using the electron configuration flow diagram below, what is the correct electron configuration for nitrogen (atomic number 7)?
cluponka [151]

Answer:

I do not see the electron configuration flow diagram, but the full electron configuration for nitrogen is  1s^22s^22p^3

8 0
3 years ago
A recent study has shown an increase in the number of predators in an ecosystem. Which of the following is not a possible cause
gladu [14]

Answer:

A recent study has shown an increase in the number of predators in an ecosystem. Which of the following is not a possible cause for the growth?a.An increase in the land space availableb.An increase in the population of prey it feeds onc.An increase in the biodiversity of the ecosystemd.An

Explanation:

5 0
2 years ago
Read 2 more answers
Which molecules prevent cell membranes from dissolving in water?
sertanlavr [38]

Answer:

The "tail" of the molecule is made up of two fatty acids, which are hydrophobic and do not dissolve in water. Following the rule of "like dissolves like", the hydrophilic head of the phospholipid molecule dissolves readily in water.

Nonpolar Fatty Acids

I Hope this answers your question :)

5 0
3 years ago
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tekilochka [14]
Density...
Fire bricks absorb many btu’s, so once heated up only a small flame is required to maintain that heat/temperature.

The fire brick composition is mostly materials like alumina silica sand, clay, not very porous.
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