Podcast
Questions and Answers
What is the approximate length of the DNA molecule in Escherichia coli?
What is the approximate length of the DNA molecule in Escherichia coli?
- 9.2 × 10^6 base pairs
- 4.6 × 10^6 nucleotides
- 4.6 × 10^6 base pairs (correct)
- 9.2 × 10^6 nucleotides
Which of the following organisms has the shortest DNA length?
Which of the following organisms has the shortest DNA length?
- Bacteriophage φX174 (correct)
- Human
- Bacteriophage lambda
- Escherichia coli
What is the difference in the length of DNA between bacteriophage lambda and Escherichia coli?
What is the difference in the length of DNA between bacteriophage lambda and Escherichia coli?
- 4.1146 × 10^9 bp
- 4.3646 × 10^6 bp
- 4.3646 × 10^9 bp
- 4.1146 × 10^6 bp (correct)
How many times longer is the human haploid DNA compared to bacteriophage lambda?
How many times longer is the human haploid DNA compared to bacteriophage lambda?
If the DNA of an organism contains 10^8 base pairs, how many nucleotides will it contain?
If the DNA of an organism contains 10^8 base pairs, how many nucleotides will it contain?
Flashcards
Polymer
Polymer
A long chain of molecules like DNA or RNA, made up of repeating subunits called nucleotides.
Nucleotide
Nucleotide
The basic building blocks of DNA, consisting of a sugar, a phosphate group, and one of four nitrogenous bases (adenine, guanine, cytosine, or thymine)
DNA Length
DNA Length
The number of nucleotides present in a DNA molecule. It's like counting the number of beads in a necklace.
Base Pair
Base Pair
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Genome
Genome
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Study Notes
DNA Structure and Length
- DNA is a long polymer composed of deoxyribonucleotides.
- DNA length is measured by the number of nucleotides or base pairs.
- DNA length characteristics are organism-specific.
- Bacteriophage φ ×174 has 5386 nucleotides.
- Bacteriophage lambda has 48,502 base pairs.
- Escherichia coli has 4.6 × 106 base pairs.
- The haploid human DNA content is 3.3 × 109 base pairs.
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