Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 10, Problem 2RQ
n gel electrophoresis of DNA, the different bands in the final gel form because the DNA molecules _______.
a. are from different organisms
b. have different lengths
c. have different
d. have different genes
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In gel electrophoresis of DNA, the different bands in the final gel form because the DNA molecules ________.a. are from different organismsb. have different lengthsc. have different nucleotide compositionsd. have different genes
DNA fragments that are 500 bp, 1000 bp, and 2000 bp in length are separated by gel electrophoresis. Which fragment will migrate farthest in the gel?
a. The 2000-bp fragment
b. The 1000-bp fragment
c. The 500-bp fragment
d. All will migrate equal distances.
Electrophoresis separates fragments of DNA according to_____ . a. sequence b. length c. species
Chapter 10 Solutions
Concepts of Biology
Ch. 10 - Figure 10.7 Why was Dolly a Finn-Dorset and not a...Ch. 10 - n gel electrophoresis of DNA, the different bands...Ch. 10 - In the reproductive cloning of an animal, the...Ch. 10 - What carries a gene from one organism into a...Ch. 10 - What is a genetically modified organism (GMO)? a....Ch. 10 - What is the role of Agrobacterium tumefaciens in...Ch. 10 - What is the most challenging issue facing genome...Ch. 10 - Genomics can be used in agriculture to: a....Ch. 10 - What kind of diseases are studied using...Ch. 10 - What is the purpose and benefit of the polymerase...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- We want to extract DNA from this culture of bacteria suspended in Media the bacteria cells are floating in the liquid. Our first step is to centrifuge our sample. Do we keep the supernatant or the pellet and why? A. Supernatant because it contains Calais or nutrients B. Pellet because it contained only DNS and the supernatant contains the rest of the cell part C. Supernatant because it contains only dna and the pellet contains the rest of the cell parts D. Pellet because it contains the parts of the bacterial cell with the plasmid DNAarrow_forwardGel electrophoresis separates the DNA fragments according to ____. a. their type b. their stage in replication c. the orientation of the nucleotides in the fragment d. their size e. their ability to bind to the gelarrow_forwardI need the answer as soon as possiblearrow_forward
- We use thermostable polymerase in Polymerase chain reaction as we use ______ to unwind DNA strands A. helicase B. denaturants C. none of the above D. heatarrow_forwardDuring replication, proofreading is accomplished by _____ and removes the incorrect base ____ a. DNA pol III 5’-3’ b. DNA pol I 3’-5’ c. DNA pol III 3’-5’ d. DNA pol I 5’-3’arrow_forwardRefer to Figure 2 and compare this with the DNA model in Figure 1. a. In what ways are they similar? b. In what ways are they different? c. What is the biological significance of such differences? Why is the DNA referred to as the genetic material?arrow_forward
- A biochemist isolates, purifies and combines ina test tube a variety of molecules needed for DNA replication. When she adds some DNA to the mixture, replication occurs, but each DNA molecule consists of a normal strand paired with numerous segments of DNA a few hundred nucleotides long. What has she probably left out of the mixture? a.DNA polymerase b. DNA ligase c. Okajaki fragments d. primasearrow_forwardIn DNA replication, a primer is _____. a. what the original DNA strands are called b. a molecule that provides the energy for nucleotide attachments c. a regulatory protein that turns on the gene that starts DNA replication d. an enzyme that breaks the hydrogen bonds between base pairs e. a short piece of nucleic acid that serves as an attachment point for DNA polymerasearrow_forwardFour enzymes are listed below, match each to the correct definition. Definition Enzyme 4. Ligase 5. Primase 6. Gyrase 7. Helicase Answer a. Unwinds DNA b. Relieves tension in DNA during unwinding c. Links sugars and phosphates together d. Builds RNA primers C В Aarrow_forward
- Which of the following strands of DNA (assuming it was bound to its complementary strand to create a double-helix structure) would be the most difficult to break apart? O a. 5'- CCGCCAAGGCAT - 3' O b. 5' - CAATTAGTTAAC - 3' O C. 5'- AAATTGATATAT - 3' d. 5'- AATGCGCCGATA - 3' e. 5'- CCAGGCCGTGGA - 3'arrow_forwardplease fill in the blankarrow_forwardDNA polymerases make errors in matching as DNA is synthesized. These errors can be detected and repaired by: A. Ligase B. DNA polymerase C. Primase D. Helicasearrow_forward
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