What is the problem that occurs at the ends of the chromosome during replication?
Unlike bacterial chromosomes, the chromosomes of eukaryotes are linear (rod-shaped), meaning that they have ends. These ends pose a problem for DNA replication. The DNA at the very end of the chromosome cannot be fully copied in each round of replication, resulting in a slow, gradual shortening of the chromosome.Click to see full answer. Hereof,…
Unlike bacterial chromosomes, the chromosomes of eukaryotes are linear (rod-shaped), meaning that they have ends. These ends pose a problem for DNA replication. The DNA at the very end of the chromosome cannot be fully copied in each round of replication, resulting in a slow, gradual shortening of the chromosome.Click to see full answer. Hereof, what is the end of chromosome problem for linear replication? Telomere Replication The ends of the linear chromosomes are known as telomeres: repetitive sequences that code for no particular gene. These telomeres protect the important genes from being deleted as cells divide and as DNA strands shorten during replication.Secondly, what is the end replication problem and how is it solved? Eukaryotes have solved the end-replication problem by locating highly repeated DNA sequence at the end, or telomeres, of each linear chromosome. In humans and other vertebrate organisms, the sequence of nucleotides in telomeres is TTAGGG, is repeated between 100 and 1000 times. Subsequently, question is, how does telomerase recognize and repair the ends of linear chromosomes? The ends of linear chromosomes, called telomeres, protect genes from getting deleted as cells continue to divide. The telomerase enzyme attaches to the end of the chromosome; complementary bases to the RNA template are added on the 3′ end of the DNA strand.What foods help telomeres? Types of foods related to longer telomeres: Eat plenty of produce, try to include at various times citrus, berries, apples, plums, carrots, green leafy vegetables, tomatoes. There are also antioxidants in beans, nuts, seeds, whole grains, and green tea.
