DNA is composed of thousands of nucleotides, each of them made of a phosphate group, sugar and a base. The sugar in the DNA molecule is deoxyribose. The four bases in the DNA molecule are adenine (symbolized by and A), thymine (T), cytosine (C), and guanine (G). The DNA molecule resembles a twisted ladder with the phosphate group and sugars located where (on the structure of the molecule)? and the steps of the ladder made up of what? There are what we call complementary base pairing rules in which adenine ALWAYS pairs with Thymine and cytosine ALWAYS pairs with guanine. DNA codes for making proteins. It is in the sequence of the bases which "code" for the production of proteins. Proteins are very important molecules which are needed to assist in repairing and maintaining cells, as well as producing the cell's defense, hormones or enzymes. Proteins are made up of subunits known as Protein synthesis begins with information on a segment of DNA being "transcribed" or converted into messenger RNA (mRNA). RNA is a nucleic acid which differs from DNA in 3 primary ways- They are? 1. RNA has how many strands? 2. RNA has which sugar? 3. RNA has 4 bases just like DNA except for one base called?

DNA is composed of thousands of nucleotides, each of them made of a phosphate group, sugar and a base. The sugar in the DNA molecule is deoxyribose. The four bases in the DNA molecule are adenine (symbolized by and A), thymine (T), cytosine (C), and guanine (G). The DNA molecule resembles a twisted ladder with the phosphate group and sugars located where (on the structure of the molecule)? and the steps of the ladder made up of what? There are what we call complementary base pairing rules in which adenine ALWAYS pairs with Thymine and cytosine ALWAYS pairs with guanine. DNA codes for making proteins. It is in the sequence of the bases which "code" for the production of proteins. Proteins are very important molecules which are needed to assist in repairing and maintaining cells, as well as producing the cell's defense, hormones or enzymes. Proteins are made up of subunits known as Protein synthesis begins with information on a segment of DNA being "transcribed" or converted into messenger RNA (mRNA). RNA is a nucleic acid which differs from DNA in 3 primary ways- They are? 1. RNA has how many strands? 2. RNA has which sugar? 3. RNA has 4 bases just like DNA except for one base called?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 16QP: A beginning genetics student is attempting to complete an assignment to draw a base pair from a DNA...

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DNA contains many hydrogen bonds. Are hydrogen bonds stronger or weaker than covalent bonds? What are the consequences of this difference in strength?
Write out the DNA sequence using the following instructions: This is a double stranded DNA hydrogen bonding with each other following the principle of complementary base-pairing Each strand contains ten nucleotides Each strand contains all four different types of nucleotides You should indicate clearly the directionality of each strand in your answer You do not need to draw the full nucleotide structure. Use the one-letter code (A, T, G, C, or U) to represent each nucleotide
DNA structure depends on base pairing of its four nucleotides, A, C, T, and G. Nucleotide A pairs with T, and nucleotide C pairs with G. This forms a four-letter DNA “alphabet." Because DNA codes for amino acids in sets of three nucleotides, there are 4 cubed (4'), or 64, possible combinations, coding for 20 different amino acids. What is the best explanation for why there is no selective advantage for DNA to have five nucleotides (e.g., A, C, T, G, and E) with C pairing with either G or functionally equivalent E? It would be impossible to form the DNA molecule, because it must have an equal number of Cs and Gs. Because G and E have the same role, there would still be four functional letters of the alphabet. Replication would be inaccurate because sometimes C would bond with G and sometimes C would bond with E. There would be a five-letter alphabet with 125 combinations, which is too numerous. It is impossible because there are not five known nucleotides in the cell.
In one paragraph, using your own words, describe the structure of DNA. Be sure to include the following terms: nucleotide, phosphate, adenine, cytosine, guanine, and thymine.
The nucleotides are very specific as to which bond together. The four nucleotides are:Adenine (A) Thymine (T)Guanine (G) Cytosine (C)They are written out in this order because Adenine always bonds with Thymine and Cytosine alwaysbonds with Guanine. Draw a line connecting those so you remember.Let’s practice making complementary strands. DNA: T-A-C-T-T-A-C-A-C-G-T-C-A-A-C-G-T-G-C-C-T-T-A-G-C-C-A-T-TDNA: A-T-GGo ahead and write out the complementary strand to the strand above continuing where we left off.
If DNA analysis of a gene shows it has 20% adenine (A), what percent of the other bases does it have? Cytosine (C): Guanine (G): Thymine (T): Uracil (U): 6. Now for a sense of size. Rank the following from smallest (1) to largest (6): gene, cell, chromosome, atom, nucleus, nucleotide
Draw a DNA structure that includes at least two criss crosses There must be 5 nucleotide pairs above and below each intersect. Label §Adenine §Thymine §Guanine §Cytosine §Phosphates §Sugars §Hydrogen bonds Color code each part and provide a key
Please draw a monomer of DNA, label all parts and the carbon numbers on the sugar (as shown in figure 2.18 but the goal is to draw without help). The way to number the carbons in the sugar is to start at number the carbon at which the base is attached as 1 and then moving away from the oxygen number sequentially. Now draw a monomer of RNA. Again, label all parts and number the carbons in the sugar. Compare the two drawings by writing differences below. Finally, draw a dimer of either DNA or RNA and show how two nucleotides are connected. Remember, a dimer means "two units", or two monomers, connect by covalent bonds to make a bigger molecule. This is not asking you to draw hydrogen bonds between a pair of bases (a base pair).
In your own words describe the various types of bonds that are found in the structure of DNA and the roles they play in stabilizing the DNA molecule. Describe the chemical nature of the DNA molecule as best as you can.
a. Write the structural formula of GAC, a portion of DNA. Write the complementary strand adjacent to it so that the complementary bases are side by side. Connect the appropriate base pairs. b. Sticking to the convention of writing the nucleotide sequence in the 5'-3' direction, what is the nucleotide sequence of the DNA strand complementary to ATGCACCATGCT?
Identify the key structural features of a DNA molecule. Strong ionic bonds and hydrophobic interaction hold DNA together. DNA bases are always paired purine with pyrimidine. DNA strands are antiparallel and include a 5' end and a 3' end. DNA contains the nucleotide bases adenine, thymine, guanine, cytosine, and uracil. DNA is most often found as a left-handed helix, commonly referred to as Z-DNA. The backbone of DNA is made of a sugar and a phosphate molecule.
For entertainment on a Friday night, a genetics professor proposed that his children diagram a polynucleotide strand of DNA. Having learned about DNA in preschool, his 5-year-old daughter was able to draw a polynucleotide strand, but she made a few mistakes. The daughter’sdiagram (represented here) contained at least 10 mistakes. Q. Draw the correct structure for the polynucleotide strand.