1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
wariber [46]
4 years ago
8

Ethidium bromide is a common intercalating agent used to visualize DNA in electrophoresis gels by associating with the DNA in th

e gels and fluorescing under UV light to reveal bands. How does ethidium bromide associate with the DNA?
Biology
1 answer:
exis [7]4 years ago
7 0

Answer:

EtBr inserts between the stacked bases in the DNA double helix.

Explanation:

  • EtBr is used for visualizing DNA bands as it fluoresces under the UV illumination.
  • EtBr is an aromatic compound that is capable of inserting itself between the stacked bases of the DNA double helix.
  • The hydrophobic environment around the base pairs where the EtBr intercalates is responsible for the fluorescence. As the EtBr molecule intercalates between these base pairs the cation of EtBr sheds the water molecules associated with it and this causes it to fluoresce under UV light as water is a quencher of fluorescence.
You might be interested in
An opening in the earths service through which molten rock flows is called a...?​
professor190 [17]

Answer:

Vent.

Explanation:

8 0
3 years ago
Read 2 more answers
Which types of organisms have a cell wall and which have a cell membrane.
Ratling [72]
All plants have a cell wall, all mammals have a cell membrane. a cell membrane is semi-permeable it allows mammal cells to absorb needed nutrients, oxygen and deposit waste into the blood stream where it is excreted through urine and feces. a plant cells nutrients are absorbed through the root system and leaves, waste is excreted in the form of oxygen through the plant itself.
6 0
4 years ago
From a large-scale screen of many plants of Collinsia grandiflora, a plant with three cotyledons was discovered (normally, there
Aleksandr-060686 [28]

Answer:

The cross is as follows:

P: D/d × d/d

Explanation:

Half of the F1 progeny are mutant. The mutation results in 3 cotyledons is dominant and the original mutant is heterozygous.

If D denotes the mutant allele and d denotes the wild type allele.

The cross is as follows:

P: D/d × d/d

F1 denotes D/d three cotyledons

d/d denote two cotyledons

3 0
3 years ago
The question is below
Darina [25.2K]
The right answer is: C) Iruptive Growth. For their growth is never stable.
4 0
3 years ago
Pls Help! Will make Brainlest ​
Gennadij [26K]

Answer: All of these aswers would be correct

Explanation:

5 0
4 years ago
Other questions:
  • The number of horns in jackalopes follows the rules for incomplete dominance. alleles are h = 2 horns, h = 0 horns. if a jackalo
    14·1 answer
  • The longest cells in the body are _______ cells.
    9·1 answer
  • Clothing that comes into contact with radiation is considered high-level nuclear waste?
    12·2 answers
  • Can abiotic factors be composed of cells?
    14·2 answers
  • Cancer cells undergo _______ division
    14·1 answer
  • Which is least likely to be a reservoir for fresh water? ocean atmosphere ice and snow aquifer
    13·2 answers
  • Sections of an mRNA molecule that are removed:
    14·1 answer
  • This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.That's my quest
    10·1 answer
  • If my dog fell ill i should take him to long walk true or false
    11·1 answer
  • What does yeast need to break its dormancy?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!