A Eukaryotic Cell Lacking Telomerase Would? All Answers

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A eukaryotic cell lacking telomerase would shorten the ends of its chromosomes with every replication. DNA polymerase is incapable of replicating to the end of a chromosome. To counter this an enzyme called telomerase adds repeat sequences at the ends of chromosomes preserving the lengths of chromosomes. If chromosomes keep shortening after a …

Telomerase Replication in Eukaryotes | End Replication

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What would happen if a eukaryotic cell does not have telomerase?

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A eukaryotic cell lacking telomerase would A) have a high probability of becoming cancerous. B) produce Okazaki fragments. C) be unable to repair thymine dimers.

What is the function of telomerase Quizlet?

Function of Telomerase. “Telomeres” are lengths of short, highly repetitive nucleotide sequences found on the ends of our DNA strands. Unlike the vital parts of our DNA, telomeres do not contain information needed to make proteins. Instead, they act as a buffer or “cap” to protect the vital coding regions.

Where is telomerase found in the body?

Telomerase is not usually active in most somatic cells (cells of the body), but it’s active in germ cells (the cells that make sperm and eggs) and some adult stem cells.

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Why are telomeres important in eukaryotic chromosomes?

To prevent the loss of genes as chromosome ends wear down, the tips of eukaryotic chromosomes have specialized DNA “caps” called telomeres. Telomeres consist of hundreds or thousands of repeats of the same short DNA sequence, which varies between organisms but is 5′-TTAGGG-3′ in humans and other mammals.

What happens when telomeres are lost?

Scientists believe that the loss of telomeres leads to eventual loss of important, coding regions of DNA, and that this impairs cells’ ability to divide and produce healthy daughter cells over time.

What is the difference between prokaryotic and eukaryotic chromosomes?

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A) The prokaryotic chromosome is circular, whereas eukaryotic chromosomes are linear. B) Prokaryotic chromosomes have a single origin of replication, whereas eukaryotic chromosomes have many.

The main difference between Prokaryotic Chromosomes and Eukaryotic Chromosomes is that Prokaryotic Chromosomes are present in the cytoplasm of the cell, short in size, and contain circular DNA molecules, whereas Eukaryotic Chromosomes are present in the nucleus, long in size and have linear DNA structure.

How do prokaryotic cells differ from eukaryotes?

Prokaryotic cells typically have a single, circular chromosome located in the nucleoid. Since prokaryotic cells typically have only a single, circular chromosome, they can replicate faster than eukaryotic cells.

Do prokaryotic cells have chromosomes?

Prokaryotic Chromosome. Prokaryotic cells typically have a single, circular chromosome located in the nucleoid. Since prokaryotic cells typically have only a single, circular chromosome, they can replicate faster than eukaryotic cells. In fact, a prokaryotic cell can undergo two rounds of DNA replication before the cell, itself, has divided.

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Why do prokaryotes replicate faster than eukaryotes?

Since prokaryotic cells typically have only a single, circular chromosome, they can replicate faster than eukaryotic cells. In fact, a prokaryotic cell can undergo two rounds of DNA replication before the cell, itself, has divided.

What do prokaryotic and eukaryotic genomes have in common?

Both Prokaryotic and Eukaryotic Genome consist of DNA molecules. Genomes serve as the storages of genetic information of both types of organisms. Also, both genomes contain genes. Furthermore, both undergo transcription and translation.

Why do biologists believe that the nucleus contains DNA and proteins?

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For a couple of decades, biologists knew the nucleus contained DNA and proteins. The prevailing opinion was that the genetic material was proteins, and not DNA. The reason for this belief was that proteins are more complex than DNA. This is because A) proteins have a greater variety of three-dimensional forms than does DNA.

Why does DNA have to be in the nucleus?

because the DNA is too large to pass through the pores in the nucleus, so it must be transcribed into RNA which is smaller. Also the nucleus offers protection from uv radiation that has the potential to mutate the DNA. How does DNA fit inside the cell nucleus?

Why is the nucleus important to the cell nucleus?

Also the nucleus offers protection from uv radiation that has the potential to mutate the DNA. How does DNA fit inside the cell nucleus? It does not have to “fit” into the cell nucleus, because it has always been there.

Does every cell in the human body contain DNA?

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Not every cell in the human body contains DNA bundled in a cell nucleus. Specifically, mature red blood cells and cornified cells in the skin, hair, and nails contain no nucleus. Mature hair cells do not contain any nuclear DNA. Public Domain Image, source: Christopher S. Baird.

Why do prokaryotic cells have no nucleus?

Being said that DNA replicates into the nucleus only in Eukaryotes, cause Prokaryotes lack of nucleus. Now, the most straightforward answer is: because the DNA is into the nucleus.

References:

Chapter 16 – The Molecular Basis of Inheritance …

BIO ch.16 Flashcards | Quizlet

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Questions just answered:

What is the function of telomerase Quizlet?

Where is telomerase found in the body?

Why are telomeres important in eukaryotic chromosomes?

What happens when telomeres are lost?

What would happen if a eukaryotic cell does not have telomerase?

Why does DNA have to be in the nucleus?

Why is the nucleus important to the cell nucleus?

Does every cell in the human body contain DNA?

Why do prokaryotic cells have no nucleus?

Why do biologists believe that the nucleus contains DNA and proteins?

How do prokaryotic cells differ from eukaryotes?

Do prokaryotic cells have chromosomes?

Why do prokaryotes replicate faster than eukaryotes?

What do prokaryotic and eukaryotic genomes have in common?

What is the difference between prokaryotic and eukaryotic chromosomes?

a eukaryotic cell lacking telomerase would

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