Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134256283
Author: Audesirk
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 1FTB
DNA consists of subunits called_________. Each subunit consists of three parts:________,________, and_________.
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The primary structure of DNA is held together with ___________ bonds, and the secondary structure is held together with _____________ bonds.
the following is a strand of a DNA
The two strands in DNA are not identical but complementary. Explain.
Chapter 12 Solutions
Biology: Life on Earth (11th Edition)
Ch. 12 - 1. If a parental DNA strand has the base sequence...Ch. 12 - 2. What happens at the conclusion of DNA...Ch. 12 - An insertion mutation occurs when a nucleotide is...Ch. 12 - The rungs of the DNA double helix consist of any...Ch. 12 - The “rungs” of the DNA double helix are held...Ch. 12 - 1. DNA consists of subunits called_________. Each...Ch. 12 - The subunits of DNA are assembled by linking...Ch. 12 - The “base pairing rule” in DNA is that adenine...Ch. 12 - 4. When DNA is replicated, two new DNA double...Ch. 12 - The DNA double helix is unwound by an enzyme...
Ch. 12 - 6. Sometimes mistakes are made during DNA...Ch. 12 - Describe the experimental evidence that DNA is the...Ch. 12 - 2. Draw the general structure of a nucleotide....Ch. 12 - Describe the structure of DNA. Where are the...Ch. 12 - How is information encoded in the DNA molecule?Ch. 12 - 5. Describe the process of DNA replication.
Ch. 12 - How do mutations occur? Describe the principal...Ch. 12 - 1. In an alternate universe, although proteins are...Ch. 12 - Prob. 2AC
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- An RNA molecule is typically _________ ; a DNA molecule is typically ______ . a. single-stranded; double-stranded b. double-stranded; single-strandedarrow_forwardRNA differs from DNA in that the base _______________ is substituted for _______________. (a) adenine; uracil (b) uracil; thymine (c) guanine; uracil (d) cytosine; guanine (e) guanine; adeninearrow_forwardWhich is not a nucleotide base in DNA? a. adenine c. glutamine e. cytosine b. guanine d. thymine f. All are in DNA.arrow_forward
- A DNA segment has a total of 1000 nucleotides, out of which 240 of them are adenine containing nucleotides. How many pyrimidine bases does this DNA segment possess?arrow_forwardDNA molecules are made of small units called nucleotide. Which of the following is not part of a nucleotidearrow_forwardDNA contains _________ polynucleotide strands, each composed of _________ kinds of nucleotides. (Provide two numbers.)arrow_forward
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