Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 2, Problem 30RQ
In DNA,
- beta chain
- pleated sheet
- alpha helix
- double helix
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Using the DNA figure below to identify structures of the following letters:
A=
B=
C=
D=
E=
F: Circle a nucleotide for each backbone strand
A
B
A
G
G
A
E
T
__________________ bonds between the nitrogenous bases hold the two single strands together in the double in the double helix.
Hydrogen bonds are important in DNA replication and transcription. They are relatively weak chemical bonds. Why is this a desirable feature for DNA?
Chapter 2 Solutions
Anatomy & Physiology
Ch. 2 - Visit this website...Ch. 2 - Visit this website...Ch. 2 - Watch this video...Ch. 2 - Together, just four elements make up more than 95...Ch. 2 - The smallest unit of an element that still retains...Ch. 2 - The characteristic that gives an element its...Ch. 2 - On the periodic table of the elements, mercury...Ch. 2 - Nitrogen has an atomic number of seven. How many...Ch. 2 - Which of the following is a molecule, but not a...Ch. 2 - A molecule of ammonia contains one atom of...
Ch. 2 - When an atom donates an electron to another atom,...Ch. 2 - A substance formed of crystals of equal numbers of...Ch. 2 - Which of the following statements about chemical...Ch. 2 - The energy stored in a foot of snow on a steep...Ch. 2 - The bonding of calcium, phosphorus, and other...Ch. 2 - ABA+B is a general notation for a(n) ________...Ch. 2 - __________ reactions release energy. Catabolic...Ch. 2 - Which of the following combinations of atoms is...Ch. 2 - Chewing a bite of bread mixes it with saliva and...Ch. 2 - CH4 is methane. This compound is ________....Ch. 2 - Which of the following is most likely to be found...Ch. 2 - Jenny mixes up a batch of pancake batter, then...Ch. 2 - A substance dissociates into K+ and Cl- in...Ch. 2 - Ty is three years old and as a result of a stomach...Ch. 2 - C6H12O6 is the chemical formula for a ________....Ch. 2 - What organic compound do brain cells primarily...Ch. 2 - Which of the following is a functional group that...Ch. 2 - A pentose sugar is a part of the monomer used to...Ch. 2 - A phospholipid ________. has both polar and...Ch. 2 - In DNA, nucleotide bonding forms a compound with a...Ch. 2 - Uracil ________. contains nitrogen is a pyrimidine...Ch. 2 - The ability of an enzymes active sites to bind...Ch. 2 - The most abundant elements In the foods and...Ch. 2 - Oxygen, whose atomic number is eight, has three...Ch. 2 - Magnesium is an important element in the human...Ch. 2 - Explain why CH4 is one of the most common...Ch. 2 - In a hurry one day, you merely rinse your lunch...Ch. 2 - Could two atoms of oxygen engage in ionic bonding?...Ch. 2 - AB+CDAD+BE Is this a legitimate example of an...Ch. 2 - When you do a load of laundry, why do you not just...Ch. 2 - The pH of lemon juice is 2, and the pH of orange...Ch. 2 - During a party, Eli loses a bet and is forced to...Ch. 2 - If the disaccharide maltose is formed from two...Ch. 2 - Once dietary fats are digested and absorbed, why...
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- Adenine is a: a. nucleoside b. purine c. pyrimidine d. nucleotide e. basearrow_forwardDNA contains many hydrogen bonds. Are hydrogen bonds stronger or weaker than covalent bonds? What are the consequences of this difference in strength?arrow_forwardA double helix is made up of _____________ strandsarrow_forward
- 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.arrow_forwardPlace an asterisks (*) next to the 3' carbon atoms in the polynucleotide shown. -O CH₂ HOHDH Guanine -O-CH₂ H H H Thymine =P-O-CH₂ H OH Answer Bank H H Cytosinearrow_forwardFill in the space _____________ repeats are structural motifs found in many proteins, and they consist of a hairpin loop followed by a helix-turn-helix.arrow_forward
- NH но- `NH2 ÓH ÓH Он ОН Which nucleotide is shown in the picture above? deoxyguanosine triphosphate guanosine triphosphatearrow_forwardIf the forces—hydrogen bonds and stacking forces— holding a helix together are weak, why is it difficult to disrupt a double helix?arrow_forwardIn the double helix of DNA, the ____________ bases of one strand exhibit complementary base pairing with the bases of the other strand.arrow_forward
- Given the structures of the ribonucleotides and deoxyribonucleotides: Adenine Uracil Thymine HN Adenine NH HO-P-0- CH2 HO-P-0 CH2 HO-P-0-CH2 HO-P-0-CH он он он он OH H OH H Cytosine Cytosine Guanine Guanine NH2 NH NH2 CH2 HOo CH2 HO-P-0 -CH2 он он он он OH H OH H • Draw the structure of the polyribonucleotide UAGCCUG. Draw the structure of the polydeoxyribonucleotide CGTAGAT.arrow_forwardTwo nucleotides are linked together in a sequence of DNA via a phosphoanhydride linkage. True Or Falsearrow_forwardIn DNA polymer, one nucleotide joins with its neighboring nucleotide at 5' carbon. is it true or falsearrow_forward
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