BIOLOGY (LL)
5th Edition
ISBN: 9781264115495
Author: BROOKER
Publisher: MCG
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Chapter 11, Problem 3CQ
Summary Introduction
To explain: The way in which the structure of DNA underlies different aspects of its functions.
Introduction: DNA stands for “Deoxyribonucleic acid”. It is a
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Background: DNA nucleotides (i.e A, T, G, and C) are naturally found in a paired, or bonded, arrangement
(i.e. the double helix) within the nucleus of every cell. This structure makes the process of replication that
occurs prior to mitosis and meiosis very reliable. The purpose of DNA, though, is not simply to make copies of
itself, but to provide a set of instructions for the synthesis or "construction" of biomolecules, such as proteins.
Why is transcription (i.e. the formation of an RNA copy of a given gene) a necessary step in the
"construction" process highlighted above? What is the cell looking to ultimately do with this RNA
information?
Describe the structure of DNA.
The two strands of DNA are antiparallel. What
does the term antiparallel mean?
Describe how DNA is tightly packaged. Your
description should include the terms histones,
chromatin, nucleosomes and chromosomes.
Illustrate the major features of DNA’s primary and secondary structure. Explain the concept of polarity as it applies to the structure of DNA.
Chapter 11 Solutions
BIOLOGY (LL)
Ch. 11.1 - Prob. 1CSCh. 11.1 - Prob. 1EQCh. 11.1 - Prob. 2EQCh. 11.1 - CoreSKILL In the experiment of Avery, MacLeod,...Ch. 11.2 - Prob. 1CCCh. 11.2 - Prob. 2CCCh. 11.2 - Core Skill: Modeling The goal of this modeling...Ch. 11.2 - Prob. 2CSCh. 11.3 - If this experiment was conducted for four rounds...Ch. 11.4 - Molecular Mechanism of DNA Replication Concept...
Ch. 11.4 - Prob. 2CCCh. 11.4 - Prob. 3CCCh. 11.4 - Prob. 4CCCh. 11.5 - Prob. 1CCCh. 11.5 - Prob. 1CSCh. 11 - Why did researchers initially believe that the...Ch. 11 - Prob. 2TYCh. 11 - Which of the following equations is accurate...Ch. 11 - Prob. 4TYCh. 11 - Which of the following statements about the...Ch. 11 - Meselson and Stahl were able to demonstrate...Ch. 11 - During replication of a DNA molecule, the daughter...Ch. 11 - Prob. 8TYCh. 11 - A nucleosome is a. a dark-staining body composed...Ch. 11 - The conversion of euchromatin into heterochromatin...Ch. 11 - What are the four key criteria that the genetic...Ch. 11 - A double-stranded DNA molecule contains 560...Ch. 11 - Prob. 3CQCh. 11 - Prob. 1COQCh. 11 - CoreSKILL How might you provide evidence that DNA...
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- Mention and explain 4 characteristics of the Structure of DNA.arrow_forwardA. Refer to the figure below and explain DNA packaging and Describe 1 structural feature/characteristic which makes histones well-suited for attracting and assisting with the packaging of DNA nucleus cel DNA of double helixarrow_forwardAKS 5b: Which statement is correct regarding the semiconservative nature of DNA? * The semiconservative nature of DNA allows for genetic stability in somatic gene production MRNA operates as a template to allow DNA to replicate itself using ribosomes The structure of the phosphate group on the DNA molecule direct the correct nucleotides into place during replication Nucleotides in each original strand serve as a template for the new strand to be made AKS 5b: Which model accurately represents the semi-conservative nature of DNA replication? * * AA AA AA AA АВ ВА AA BB AA AA АВ АС Figure A Figure B Figure C Figure Darrow_forward
- a. As a result of the structure of DNA and RNA, replication, transcription and translation are possible. What can nucleic acids do, as a result of their structure, that enables these processes to occur? The figure below shows a simplified schematic representation of a segment of DNA. The DNA is labelled with the numbers 1 – 14 for easy reference. -35 sequence Pribnow box 5' UTR 3' UTR DNA TTGACA TATAAT -35 -10 Gene a Gene B Gene y 1 2 3 4 5 6 7 8 9 10 11 12 13 14 UTR = untranslated region b. At which position on the DNA (number 1 - 14) will transcription be initiated? c. At which position on the DNA (number 1 - 14) will the first signal for translation be found? d. Between which two regions on the DNA will the polyadenylation signal be found? Use the numbers to indicate the region. e. Between which two regions on the DNA will the first Shine-Dalgarno / Ribosome Binding Sequence be found? Use the numbers to indicate the region.arrow_forwardDNA: Whats the structural and functional differences between heterochromatin and euchromatin?arrow_forwardDetermine what amino acid will be formed from the given DNA strand below: 3’ T A C A T G C C G A A T 5’ Note: Prepare the partner strand of this DNA. Discuss how will replication happen by mentioning the enzyme needed then transcribe to form mRNA. Discuss what will happen to mRNA, then translate, mentioning the anticodon to be used. Look at the genetic code to know what amino acid will become part of the polypeptide chain. 1. Partner DNA strand 2. the mRNA strand 3. the tRNA 4. the formed amino acidsarrow_forward
- In your own wordsarrow_forwardWrite down the major differences between DNA and RNA. Keeping in mind the concept of “central dogma “explain whether the information from protein is transferred to DNA? If Yes/No, explain.with daigrmsarrow_forwardIN A BOND PAPER OR ANY PAPER. CREATE AN INTERACTIVE POSTER ENTITLED "THE CENTRAL DOGMA OF LIFE" SHOWCASING EVERY STEP/PART OF THE CENTRAL DOGMA (REPLICATION-TRANSCRIPTION-TRANSLATION). EXPLAIN WHAT HAPPENS TO A GENE SEQUENCE THAT UNDERGOES TRANSCRIPTION AND EVENTUAL TRANSLATION INTO PROTEIN. (NOTE: YOU MAY CHOOSE A VARIETY OF MEDIUM FOR PRESENTING THE STEPS OF THE PROCESSES.)arrow_forward
- AKS 5c: In eukaryotic organisms like humans, DNA never leaves the nucleus. Which of the following is the best explanation for how DNA provides the code for physical traits and characteristics of humans, even though it never leaves the nucleus? * In the nucleus, the DNA is transcribed into mRNA, which can then leave the nucleus and be translated at the hbosome into proteins, which make up physical traits and characteristics. Under the right conditions, DNA turns into TRNA so it can leave the nucleus, then it is translated into proteins which make up physical traits and characteristics. Inside the nucleus, DNA is transcribed into TRNA, which is then translated into proteins. These proteins can then leave the nucleus and make up physical traits and characteristics. The DNA in the nucleus is translated into proteins, which are able to leave the nucleus and enter the cytoplasm, where transcription of rRNA can occur. The rRNA then makes up the physical traits and characteristics. AKS 5c1:…arrow_forwardexplain DNA transposons: Structure and movementarrow_forwardOutline the key structural features of the DNA double helix.arrow_forward
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