I need help! science lab questions...

It's mostly about replication and transcription of DNA.

There are a lot of questions and these are the ones I don't understand..

part 4:
1. Describe the structure of DNA.
3. List the steps involved in the copying of DNA before cell division.
5....

Describe the process of transcription.

part 6:
26. Speculate about what would happen if the nucleotide pairs in the replicated dna were not in the same sequence as the original dna.
27. Write the mRNA transcription of the DNA sequence presented below.
CTG TTC ATA ATT
Next, write the tRNA anticodons that would pair with the mRNA transcription.
38. If you transcribed the wrong side of the DNA molecule, what would the result be? How might this affect the proteins that the organism produced?
39. What are the advantages of having DNA remain in the nuclues of eukaryotice cells?

1.It is a right handed double helix. It is made up of nucleotides that are bound to eachother by phosphodiester bonds. It consists of a phosphorous group, and deoxyribose sugar, and a base (Adenine, Guanine, Cytosine, Thymine)

Adenine and Guanine are Purines, and the other two are Pyrimidines.

The bases are connected to each other by hygrogen bonding. A::T G:::C each colon represents the number of H bonds.
2.Cell division consists of two phases, nuclear division followed by cytokinesis. Nuclear division divides the genetic material in the nucleus, while cytokinesis divides the cytoplasm. There are two kinds of nuclear division—mitosis and meiosis. Mitosis divides the nucleus so that both daughter cells are genetically identical. In contrast, meiosis is a reduction division, producing daughter cells that contain half the genetic information of the parent cell.
3.transcription is the process which your DNA serves as a template to produce single stranded mRNA. An enzyme (RNA polymerase) slides down the DNA template (after the opening, and in part assisting, of the DNA double helix) and catalyzes the the polymerization of this RNA molecule. The code of the resulting mRNA is a direct result of the sequence of DNA because As and Ts (U's) match up as do Gs and Cs.

Translation is the process where your mRNA floats out the nucleus, slides into the ribosomal complex in the cytoplasm, and translates the nucleotide code within mRNA to the amino acid code. Every 3 nucleotides in this mRNA code for a specific amino acid, at which point a peptide bond is joined between amino acids to produce a polypeptide or protein. Translation is therefore the process by which mRNA codes for protein.

hope it helps

The answer to what the structure of DNA is that it is a double helix with a sugar phosphate background and bases held together by hydrogen bonds. DNA stands for deoxyribosenucleic acid. It is the signature of life. Go to: http://www.akatoo.com/question.html?question_id=2231494 for more.