a.Write out the complementary strand to the following sequence. Begin with the 5' of the end of the complementary strand. 3 ' AGCAGTGACA5' b. Which of the following statements about DNA structure is correct? *The phosphodiester backbone of DNA is composed of covalent bonds between nudeotides * Two DNA strands in a double helix have their 5ends next to each other * Hydrogen bonds connect phosphate and hydroxyl groups on neighbouring nucleotides * The 5hydroxyl group on one nucleotide is linked to the 3 phosphate on its neighbor * In a double helix, purines pair with purines, and pyrimidines with pyrimidines C). Topoisomerases are enzymes that : * Create nucleosomes *Break phosphodiester bonds between DNA nucleotides * Synthesize a new strand of DNA from a single-stranded DNA template *Break hydrogen bonds between DNA nucleotides *Remove proteins from DNA

a.Write out the complementary strand to the following sequence. Begin with the 5' of the end of the complementary strand. 3 ' AGCAGTGACA5' b. Which of the following statements about DNA structure is correct? The phosphodiester backbone of DNA is composed of covalent bonds between nudeotides Two DNA strands in a double helix have their 5ends next to each other * Hydrogen bonds connect phosphate and hydroxyl groups on neighbouring nucleotides * The 5hydroxyl group on one nucleotide is linked to the 3 phosphate on its neighbor * In a double helix, purines pair with purines, and pyrimidines with pyrimidines C). Topoisomerases are enzymes that : * Create nucleosomes Break phosphodiester bonds between DNA nucleotides Synthesize a new strand of DNA from a single-stranded DNA template Break hydrogen bonds between DNA nucleotides Remove proteins from DNA

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 15QP: Using Figures 8.7 and 8.9 as a guide, draw a dinucleotide composed of C and A. Next to this, draw...

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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?
A. Draw a detailed structure of DNA strand using the following sequence of bases 5'A -C- G 3' Show the structure of the phosphate group, pentose sugar and nitrogen containing base B. Why is DNA called the blueprint of an organism?
(Optional) Describe the structure of DNA, discussing the DNA helix and the base pairs of DNA, the overall structure of a chromosome, the structure of a gene, an mRNA, a ribosome, and a protein. What are the relative sizes of each of these?
a. How many different DNA strands composed of100 nucleotides could possibly exist?b. How many different proteins composed of100 amino acids could possibly exist?
Examine the 5'- 3 sequence of bases of the DNA molecules (A D) shown below. I am only showing you the 5 - 3' strand of each molecule, but you can imagine the complementary 3' - 5' strand for each molecule. Which double-stranded molecule is held together by 10 hydrogen bonds? O AAAT O ATAG O TGTC O GCGA
DNA Replication: 1. Write in the new (complimentary) strands for each of the two halves of the DNA molecule below to show what the two semi-conserved strands would look like. A G T A C C G G G C A A A C T G C A T T G T G I I I I I I I I I I I I I I I I I I I I I I I I I I T C A T G G C C C G T T T G A C G T A A C A C old strand A G T A C C G G G C A A A C T G C A T T G T G new strand: new strand: old strand T C A T G G C C C G T T T G A C G T A A C A C Gene Expression: 2. Use your DNA strand to construct a part of a messenger RNA molecule. DNA A G T A C C G G G C A A A C T G C A T T G T G mRNA:
1b. Write a DNA sequence 18 base pairs long in which each strand would form a cruciform structure if the two strands were separated. Label the 5' and 3' ends of each strand.
One strand of a double-helical DNA has the sequence 5'-GCGCAATATTTCTCAAAATATTGCGC-3'. Write the base sequence of the complementary strand. 5'- What special type of sequence is contained in this DNA segment? Hoogsteen pairing major groove O palindrome mirror repeat What alternative structure does the double-stranded DNA have the potential to form? B-DNA O a G tetraplex triplex DNA a cruciform Z-form DNA
13. a. Draw in the corresponding DNA nucleotide that would base pair with the adenine nucleotide shown below using the same level of detail as provided in the image below. Hint: Remember that DNA bases pair in the antiparallel orientation. орасна you A OH H b. How do you know the adenine nucleotide drawn above is from DNA and not RNA?
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
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.
Activity 4. Study the structure of DNA and answer the questions below. Sugar-Phosphate Backbones Nucleotide Key: O Adenine O Thymine I Guanine I Cytosine Hydrogen Bonds Antiparallel DNA Strands DNA Ladder Double Helix Fig. 9.DNA Structure. Retrieved June 19, 2020 from https://ib.bioninja.com.au/standard-level/topic-2-molecular- biology/26-structure-of-dna-and-rna/dna-structure.html 1. What are the common parts of the nucleotide? 2. Name the different kinds of nitrogenous bases found in the DNA molecule. 3. In DNA what is the paring arrangement of the bases?