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
MariettaO [177]
3 years ago
14

HELP!! DNA was isolated from water samples taken from six different sites. This gel

Biology
1 answer:
VladimirAG [237]3 years ago
4 0

After running DNA in a gel, bands of different sizes and species might appear. <em>Scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C). </em>

<h2>Gel</h2>

When DNA was isolated and run in a gel, many bands migrated to different points.

These bands were the different-sized fragments of DNA samples from different species from the six sites.

<em>Researchers wanted to figure out where the silver carp is. </em>

To do it, they needed to identify the bands on the gel that belonged  to the silver carp DNA, so they included negative and positive controls to make comparisons.

<h3>Positive and negative Controls</h3>

Negative and positive controls guarantee the interpretations of the results.

  • The positive control shows the band sizes that belong to the silver carp DNA.

<em>Any</em><em> band</em><em> in the sampling sites that</em><em> matches</em><em> one of the </em><em>positive control</em><em> bands indicates that the species is present at that site.</em>

  • The negative control is the opposite. It is the absence of the species' DNA.

<h3>Results interpretation</h3>

As we can see, there are four sites where the bands match one of the bands of the positive control. These are,

  1. North shore site 1
  2. Chicago site 1
  3. Calumet site 1
  4. Calumet site 2

This means that at these four sites, the silver carp is present.

<em>So scientists know silver carp are at North Shore site 1 because one of the</em><em> bands</em><em> in </em><em>lane 1</em><em> matches a band in the </em><em>positive control</em><em> (Option C). </em>

By looking at the lane of the North Shore site 1, we can also see another band (Thinner and grey). But this band does not match either of the positive control bands. This result suggests that the grey band belongs to another species' DNA.

You can learn more about gel electrophoresis at

brainly.com/question/9437877

brainly.com/question/895793

You might be interested in
Which weevil is closely related to the oak weevil
Neporo4naja [7]
Your chair 90000 nappy
4 0
2 years ago
The major role of carbohydrates in a human diet is to what
Leto [7]
Is to provide your body with energy .
4 0
3 years ago
A client says, "alcohol is not the cause of my problems. i can stop drinking any time i want." what is the short-term goal of th
Stella [2.4K]
It is important to make the client understand that while alcohol might not be the cause of their problems or all of their problems it does affect the process of their decision making depending on the situation and how they feel towards different situations. A short-term goal would be to go a week without drinking alcohol and to note their changes in mood, behavior towards others and different challenges that they face. Another option is to set a "challenge" to see how long the client can go without the consumption of alcohol, the longer they go without the bigger the changes they will see in their day to day life.
8 0
3 years ago
Read 2 more answers
If there were more weeds what would happen to the rabbits?
EleoNora [17]
Rabbits tend to wander a lot and if it runs into weed or grass... well it eats it. eating weed or grass allows rabbits to gain more energy. if the supplies of grass and or weed increases the population of rabbits would increase too. the more they eat the more energy the have and the more energy the have the more they reproduce.
more power = more reproduction
more reproduction = increase in population
so all in all the more weed, the better it is for rabbits since the amount of food increases
7 0
3 years ago
Students use alphabet letters to represent the genetic instruction for a trait of an organism. The students write these alphabet
Gemiola [76]

Answer: b

Explanation: asexual have identical offspring sexual will have different/unique offspring which means they won’t be the exact same.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A client has been diagnosed with an anterior pituitary tumor, and synthesis and release of follicle-stimulating hormone has beco
    10·1 answer
  • A scientist finds a new life form and determines that it performs photosynthesis. Which of the 6 kingdoms could it belong to? Se
    13·2 answers
  • A penetrating stab wound to the heart wall that causes blood to leak into the pericardial cavity would result in A penetrating s
    7·1 answer
  • Name and define the two bacis kinds of reproduction
    9·1 answer
  • A pharmaceutical company sets out to design a drug to inhibit the response of cells to testosterone, a steroid hormone. Which of
    10·1 answer
  • Describe the process of photosynthesis and cellular respiration<br><br> (not too long)
    15·1 answer
  • Which of the following are examples of sensory input. Select all that apply.
    6·1 answer
  • Male has 23 pairs of chromosomes and female has 23 pair of chromosomes. Then why don’t an offspring have 46 pairs of chromosomes
    15·1 answer
  • How do bacteria and archea reproduce most of the time?
    14·2 answers
  • in humans, advanced aging mimics many symptoms of mitochondrial dysfunction. This provides support for:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!