Skip to main content

Where is DNA located within a eukaryotic cell?

Deoxyribonucleic acid (DNA) is found in the membrane-bound nucleus within a eukaryotic cell.It contains the genetic blueprint of the organism and contains the instructions to produce all the necessary proteins for life to continue. The central dogma is DNA-RNA-Protein. This describes the flow of information from the DNA in the nucleus, to RNA which copies the genetic code and can travel out to the cytoplasm, where the genetic code can be translated into proteins...

Deoxyribonucleic acid (DNA) is found in the membrane-bound nucleus within a eukaryotic cell. It contains the genetic blueprint of the organism and contains the instructions to produce all the necessary proteins for life to continue. The central dogma is DNA-RNA-Protein. This describes the flow of information from the DNA in the nucleus, to RNA which copies the genetic code and can travel out to the cytoplasm, where the genetic code can be translated into proteins at the ribosomes.


DNA is a double-stranded molecule in the shape of a double helix and contains a sugar-phosphate backbone with complementary base-pairs of nucleotides in the center, held together by hydrogen bonds. The bases are adenine, thymine, cytosine and guanine--with adenine and thymine forming pairs and cytosine and guanine forming pairs.


The mitochondria is an additional location for DNA to be found in the eukaryotic cell. At fertilization, an egg cell contains mitochondrial DNA while the sperm will not contribute any mitochondrial DNA to the offspring. Therefore, the few genes found in the mitochondrial DNA pass from mother to all her offspring. 


To summarize, the chromosomes which contain the genetic blueprint and consist of DNA are found in the nucleus of a eukaryotic cell, with a small circular DNA found in each mitochondria within the cell.

Comments

Post a Comment

Popular posts from this blog

What is the meaning of "juggling fiends" in Macbeth?

Macbeth is beginning to realize that the three witches have been deceiving him since he first encountered them. Like jugglers, they have kept changing their forecasts in order create confusion. This is particularly apparent when the Second Apparition they raise in Act IV,   Scene 1 tells him that no man of woman born can overcome him in hand-to-hand battle--and then Macbeth finds himself confronted by the one man he has been avoiding out of a... Macbeth is beginning to realize that the three witches have been deceiving him since he first encountered them. Like jugglers, they have kept changing their forecasts in order create confusion. This is particularly apparent when the Second Apparition they raise in Act IV,   Scene 1 tells him that no man of woman born can overcome him in hand-to-hand battle--and then Macbeth finds himself confronted by the one man he has been avoiding out of a sense of guilt, and that man tells him: Despair thy charm. And let the angel whom thou still hast serve...
Post a Comment
Read more

Discuss movements that were inspired by the Civil Rights Movement and list one success for each group.

African-Americans contributed in a very big way during World War II. These contributions were demonstrated at home and on the battlefield. After the war, African-Americans properly felt it was time for them to achieve equality with white Americans. During the 1950's, the modern Civil Rights Movement was born and it had a number of successes (integration of the military and Brown vs. Board of Education as examples.) This success inspired other activists to demand change... African-Americans contributed in a very big way during World War II. These contributions were demonstrated at home and on the battlefield. After the war, African-Americans properly felt it was time for them to achieve equality with white Americans. During the 1950's, the modern Civil Rights Movement was born and it had a number of successes (integration of the military and Brown vs. Board of Education as examples.) This success inspired other activists to demand change for their agendas. Two examples of moveme...
Post a Comment
Read more

In Martel's Life of Pi, how does writing a diary help Pi Patel build on his leadership skills?

At the end of chapter 73, Pi first divulges the fact that he had started a diary after about a week alone at sea. Pi claims that he wrote about "practical stuff" (208) such as what he caught for food, foreseeable problems and solutions, Richard Parker, and reflections about specific events that occurred. In a sense, Pi is the captain of his ship; therefore, he must take responsibility for himself and his crew. He can... At the end of chapter 73, Pi first divulges the fact that he had started a diary after about a week alone at sea. Pi claims that he wrote about "practical stuff" (208) such as what he caught for food, foreseeable problems and solutions, Richard Parker, and reflections about specific events that occurred. In a sense, Pi is the captain of his ship; therefore, he must take responsibility for himself and his crew. He can do this by writing down events, problems and solutions, and reflections to look back on when confronted with repeated problems. It can ...
Post a Comment
Read more