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
e-lub [12.9K]
3 years ago
15

How does the use of different restriction enzymes affect the size of the dna bands produced?

Biology
1 answer:
Nesterboy [21]3 years ago
3 0

Answer:

Restriction enzymes are DNA-cutting enzymes. Each enzyme recognizes one or a few target sequences and cuts DNA at or near those sequences.

Explanation:

Many restriction enzymes make staggered cuts, producing ends with single-stranded DNA overhangs. However, some produce blunt ends. DNA ligase is a DNA-joining enzyme. If two pieces of DNA have matching ends, ligase can link them to form a single, unbroken molecule of DNA. In DNA cloning, restriction enzymes and DNA ligase are used to insert genes and other pieces of DNA into plasmids.

Your welcome :)

You might be interested in
Aside absorbing water and nutrients, what other functions do the roots serve?
AfilCa [17]
<span>Aside from absorbing water and nutrients in the ground, roots are also the very support of a tree. It supports bigger trees to stand and stay steady against heavy rains and strong winds. Roots are also capable of absorbing water that may cause flood in the area, and support slopes that may result to landslides. Roots are very important because it lessen the chances of soil erosion in a certain place. Roots can also be used for plant vegetations.</span>



6 0
3 years ago
Read 2 more answers
For plants and other organisms to develop differences among their respective species the alleles of their genes must contain var
olasank [31]

A) <u>Mutation</u> is the original source of variations for plants and other organisms  which develops differences among their respective species

Explanation:

Genetic variation leads to the natural differences between each individual and among individuals of a species. The main cause for this variation is due to alleles that cause variations in the composition of genes or the DNA sequences.  

A mutation is a genetic variation which leads to the creation of a new allele in a species population. Each variation in the DNA sequence leads to an allele formation and each allele leads to a difference in character or trait between individuals since they are the alternate version of the original genes.  

Although genetic variations could be brought about by crossing over, random fertilization, or independent assortment; mutation is the original source because it provides the basic raw material for all the evolutionary changes.

8 0
3 years ago
What is Chlamydomonas?​
saveliy_v [14]

<em>Chlamydomonas</em><em> </em><em>is</em><em> </em><em>a</em><em> </em><em>unicellular</em><em> </em><em>algae</em><em>.</em><em> </em><em>It</em><em> </em><em>occurs</em><em> </em><em>in</em><em> </em><em>many</em><em> </em><em>Varie</em><em>ties</em><em> </em><em>.</em><em>Most</em><em> </em><em>of</em><em> </em><em>these</em><em> </em><em>are</em><em> </em><em>free</em><em> </em><em>floating</em><em>,</em><em>fresh</em><em> </em><em>water</em><em> </em><em>green</em><em> </em><em>algae</em><em>.</em>

<h2><em>More</em><em> </em><em>information</em></h2>

  • <em>the plant body is un</em><em>i</em><em>cellular </em><em>and</em><em> </em><em>biflagellate</em><em>.</em><em> </em>
  • <em>the cell is </em><em>spheric</em><em>a</em><em>l</em><em> </em><em>or cylindrical in shape</em><em> </em><em>.</em>
  • <em>the Protoplasm of the cell is always surrounded by a thin </em><em>cellulose</em><em> wall</em><em> </em><em>.</em>
  • <em>a pair of </em><em>flagella</em><em> </em><em>of</em><em> </em><em>equal</em><em> </em><em>size</em><em> </em><em> </em><em>is present at the anterior </em><em>end</em><em>.</em><em> </em><em>it moves by the lashing actions of the </em><em>flagella</em><em>.</em><em> </em>
  • <em>usually two contractile vacuoles are present</em><em> </em><em>.</em>
  • <em>it contains a single nuclear suspended in colourless portion of the cytoplasm </em><em>.</em>

8 0
3 years ago
The source of energy for most autotrophs is
VMariaS [17]
Autographs are plants so they get their energy from the sun. Answer is B. Sun
3 0
3 years ago
In which phase do sister chromatids line up in the middle of the cell, (in 'single-file', without a homologous partner)? Group o
ipn [44]

Answer:

The correct answer is ''METAPHASE I.''      

Explanation:

Metaphase I is the stage in which chromosomal studies are generally performed, because its morphology is very clear. The chromosomes, moved by the mitotic spindle, are placed in the center, between the two asters and form the so-called metaphase plate, in which the chromosomes are positioned in such a way that the kinetochore of each sister chromatid are oriented towards the opposite poles. Keeping chromosomes on the cell equator implies a balance between the forces of the microtubules that tend to move the kinetochores toward opposite poles, so positioning them in the center involves a great deal of energy.In each kinetochore, between 20-30 microtubules can be anchored, which exert traction force towards the pole from which they come, so the metaphase plate is maintained by the balance between the opposite forces of the poles on the chromosomes, which hold their sister chromatids by centromeric cohesin.

3 0
3 years ago
Other questions:
  • [1] Tia and Jackie are partners in science class. [2] They have a big project to complete and are having trouble agreeing on an
    15·1 answer
  • When a muscle cell receives a signal from a motor neuron, are all the sarcomeres activated or only some?
    7·1 answer
  • Within a single use of the scientific method, which of the following steps can only be performed after data is collected? A. The
    5·2 answers
  • What does meiosis create for the population as a whole?
    12·1 answer
  • Domain bacteria are classified by cell structure and nutrition. Their cell wall is composed of ________ and they primarily make
    6·1 answer
  • BRAINLIESTTTT ASAP!!
    9·1 answer
  • PLEASE HELP ME ILL MARK BRAINLIEST CORRECT ANSWer thank you
    8·1 answer
  • The part of the lymphatic system that filters the blood is which of the following?
    13·2 answers
  • Ok I have three questions I really need help with!!
    11·1 answer
  • How does increases in human populations affect the Earth?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!