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
Scorpion4ik [409]
3 years ago
7

Mass is used _________ than weight by scientists.

Biology
1 answer:
Cerrena [4.2K]3 years ago
7 0
More often. please correct me if I am wrong
You might be interested in
HELP!! DNA was isolated from water samples taken from six different sites. This gel
VladimirAG [237]

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

4 0
2 years ago
Which statement most likely describes the daughter cells produced?
Naddik [55]

You're gonna have to give us a picture to support your question..

8 0
3 years ago
What is a baseline for an experimental investigation?
Arlecino [84]
A minimum point used for comparison i think
5 0
3 years ago
List the four steps needed to extract Dna
dalvyx [7]
As an example I will tell you how to extract DNA from peas

1. Blender insanity 
<span>The blender separates the pea cells from each other, so you now have a really thin pea-cell soup
</span>2. Soapy peas

3. Enzyme Power

4. Alcohol Seperation 
5 0
2 years ago
Which cellular structures are found in plant cells but NOT in animal cells?
Anestetic [448]
a. chloroplast and cell wall

The chloroplast contains chlorophyll, which is the stuff that makes plants green. So animals do not have a chloroplast. Only plants have a cell wall and it is what helps plants maintain their shape. Hope this helped! :)
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which cells transport oxygen in the blood
    10·2 answers
  • If an animal cell shrinks, it was probably placed in a _____.
    10·2 answers
  • A. It is easier to break down glucose into its component monosaccharides.
    6·1 answer
  • Since cognitive therapy focuses on changing thoughts rather than gaining deep insights into their causes, this kind of therapy i
    15·2 answers
  • Which molecule is classified as organic?
    6·1 answer
  • Need help with which animal appeared during mesozoic era
    7·1 answer
  • You okay baseball in a field where the grass is mowed all summer. What type of succession would occur if no one mowed the grass
    5·1 answer
  • Which of these terms refers to materials leaving the cell? A endocytosis B exocytosis
    10·1 answer
  • URGENT PLS HELP WILL MARK BRAINLIEST!!!!!!
    12·1 answer
  • What is the variable and unit of measure for water potential
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!