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What enzyme is present in cancer cells which scientists believe allows the cancer cells to keep growing indefinitely?
The enzyme present in cancer cells that allows them to keep growing indefinitely is called telomerase. Telomerase helps maintain the length of the telomeres, which are the protective caps on the ends of chromosomes. By preventing telomeres from shortening with each cell division, telomerase enables cancer cells to keep dividing and growing uncontrollably.
What enzyme makes it less likely that DNA will be lost from telomeres during replication?
Telomerase is the enzyme responsible for maintaining the length of telomeres by adding repetitive DNA sequences to the ends of chromosomes. It helps prevent the loss of genetic material during DNA replication by counteracting the shortening that occurs with each round of cell division.
What is the protective cap of DNA on the tip of chromosomes?
The telomere is the protective cap of DNA on the tip of chromosomes. You lose a small amount of these telomeres each time the cell divides. Eventually the telomeres be lost as you age. Short chromosomes because of lack telomeres are one reason aging occurs.
In a diploid cell in which 2n equals 14 how many telomeres are there in each of the follow phases of the cell cycle a. G1 b. G2 c. mitotic prophase d. mitotic telophase?
There are two telomeres for each chromosome, so you need to figure out how many chromosomes there are at each stage and multiply that by two. G1-- growth phase: 14 chromosomes = 28 telomeres G2-- growth phase after replication in S phase: 28 chromosomes= 56 telomeres Mitotic Prophase-- before cell division, nuclear membrane disappears: 28 chromosomes= 56 telomeres Mitotic telophase-- nuclei separate: 14 chromosomes = 28 telomeres
Do humans possess telomerase, the enzyme responsible for maintaining the length of telomeres?
Yes, humans do possess telomerase, the enzyme responsible for maintaining the length of telomeres.
How are telomeres replicated?
Telomeres are replicated by an enzyme called telomerase. Telomerase adds repetitive DNA sequences to the ends of chromosomes, counteracting the shortening that occurs during DNA replication. This process helps maintain the length of telomeres and preserve cell division capacity.
What enzyme is present in cancer cells which scientists believe allows the cancer cells to keep growing indefinitely?
The enzyme present in cancer cells that allows them to keep growing indefinitely is called telomerase. Telomerase helps maintain the length of the telomeres, which are the protective caps on the ends of chromosomes. By preventing telomeres from shortening with each cell division, telomerase enables cancer cells to keep dividing and growing uncontrollably.
Ends of chromosomes that get shorter each time a cell divides?
Telomeres are the ends of chromosomes that shorten with each cell division due to the replication process not reaching the very end of the DNA strand. This shortening eventually leads to cellular senescence and eventually cell death. Telomeres play a crucial role in protecting the DNA and maintaining chromosome stability.
What enzyme makes it less likely that DNA will be lost from telomeres during replication?
Telomerase is the enzyme responsible for maintaining the length of telomeres by adding repetitive DNA sequences to the ends of chromosomes. It helps prevent the loss of genetic material during DNA replication by counteracting the shortening that occurs with each round of cell division.
Can I use shortening instead of butter in this recipe?
Yes, you can use shortening instead of butter in this recipe, but keep in mind that shortening may affect the texture and flavor of the final product.
Why should shortening be refrigerated?
To keep it from melting and getting rancid (spoiled).
Is obesity related to telomeres?
Yes. We all begin as 1 cell and as it divides the telomeres become shorter. Larger people have more cells than smaller people and therefore have shorter telomeres.
What is the protective cap of DNA on the tip of chromosomes?
The telomere is the protective cap of DNA on the tip of chromosomes. You lose a small amount of these telomeres each time the cell divides. Eventually the telomeres be lost as you age. Short chromosomes because of lack telomeres are one reason aging occurs.
Can I substitute butter for shortening in this recipe?
Yes, you can substitute butter for shortening in most recipes, but keep in mind that it may affect the texture and flavor of the final product.
Can butter be substituted for shortening in a recipe?
Yes, butter can generally be substituted for shortening in a recipe, but keep in mind that it may affect the texture and flavor of the final product.
In a diploid cell in which 2n equals 14 how many telomeres are there in each of the follow phases of the cell cycle a. G1 b. G2 c. mitotic prophase d. mitotic telophase?
There are two telomeres for each chromosome, so you need to figure out how many chromosomes there are at each stage and multiply that by two. G1-- growth phase: 14 chromosomes = 28 telomeres G2-- growth phase after replication in S phase: 28 chromosomes= 56 telomeres Mitotic Prophase-- before cell division, nuclear membrane disappears: 28 chromosomes= 56 telomeres Mitotic telophase-- nuclei separate: 14 chromosomes = 28 telomeres
Fragmentation is a way to?
create variation in a musical motive by shortening it.
