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
Sedbober [7]
3 years ago
8

Explain how the dna standard (also called a ladder) is like a "control."

Biology
2 answers:
valina [46]3 years ago
7 0
It almost never can be altered

Marizza181 [45]3 years ago
4 0

DNA standard is like a control because it helps to identify the weight of the unknown samples run on electrophoresis gel. It helps to compare the bands of the unknown sample with its own band positions, and we can get the relative weight. DNA ladder consist of many bands whose sizes are known already, so that they can help to find the size of the sample DNA.

Also, a DNA ladder can't be altered during the process of running the DNA in electrophoresis gel.

You might be interested in
The thick layer of earth's surface is called
RideAnS [48]
The thick layer of earth's surface is called the mantle.
8 0
4 years ago
Read 2 more answers
(02.05 MC) Conditions under which natural selection occurs in a population of tortoises are described in the table below: Natura
Artist 52 [7]

Answer:

The answer is probably going to be D

Explanation:

The reason is because there are only a little food and then you have a variation of the same spices.  

4 0
3 years ago
Read 2 more answers
How can electromagnetic waves be used to fight a forest fire?
Rus_ich [418]

Answer:  the answer to this is D because these rays can show you where the fire is located even if it is enveloped in a cloud of gray and black smoke that prevents you from seeing it.

Explanation:

8 0
3 years ago
Read 2 more answers
Help pretty pls
spayn [35]

The population interacting with one another in a common location is referred to as a community. The correct option is B.

<h3>What are the types of communities?</h3>

Community is the population interacting with one another in a common location which can be of three types:

  • Rural community.
  • Urban community.
  • Semiurban community.

Thus, the correct option is B.

For more details regarding a community, visit:

brainly.com/question/24220431

#SPJ1

8 0
3 years ago
What is the phenotype(s) you can expect from crossing a pure round parent and a
nikklg [1K]

Answer:

Round

Explanation:

Round is the dominant phenotype and wrinkled is the recessive one. When crossing, the offspring will have one allele from each parent, i.e. Rr, wrinkled phenotype will hence be masked by the dominant round one.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which are characteristics of eukaryotic organisms? Check all that apply.
    13·1 answer
  • The euglenoids have ___ flagella. one two three none
    9·2 answers
  • Which disease makes the air sacs in the lungs less elastic, reducing their ability to absorb oxygen?
    11·2 answers
  • Which of the following is true about natural selection? A. Natural selection does not cause a species to change. B. Natural sele
    5·2 answers
  • Reset Hemopoiesis occurs in ____________ of certain bones. The process of hemopoiesis starts with hemopoietic stem cells called
    9·1 answer
  • Triose phosphate isomerase interconverts dihydroxyacetone phosphate and glyceraldehyde-3-phosphate. Mutants of yeast or bacteria
    9·1 answer
  • A plant growing in a pot is more likely to be affected by a shortage (lack) of minerals than a plant growing in a garden.
    12·1 answer
  • What is the porosity of the sand sample?<br> A)<br> 99%<br> B)<br> 72%<br> C)<br> 34%<br> D)<br> 16%
    9·2 answers
  • Lymph contains white cells called dash​
    10·1 answer
  • What happens during the reduction stage of the calvin cycle
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!