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
nalin [4]
4 years ago
13

A student isolates, purifies, and combines in a test tube a variety of molecules needed for DNA replication. After adding some D

NA to the mixture, replication occurs, but each DNA molecule consists of a normal strand paired with numerous segments of DNA a few hundred nucleotides long. What has the student probably left out of the mixture
Biology
1 answer:
aivan3 [116]4 years ago
4 0

Answer:

DNA ligase

Explanation:

DNA replication is an enzyme mediated, 3-step process during which the DNA molecule produces a copy of itself. The 3 steps involved are as follows;

  • initiation
  • elongation
  • termination

<em>Initiation </em>involves the unwinding of the double helix structure of the DNA using DNA helicase enzyme

<em>Elongation</em> involves binding of RNA primer to the DNA strands and addition of bases to the primer<em> </em>to elongate the new chains. Bases are added to the leading strand continuously while the lagging strand is replicated in short segments (okazaki segments).

<em>Termination</em> involves the unbinding of RNA primer and substitution of its bases by DNA bases. The Okazaki fragments are then joined together using the DNA ligase enzyme.

<em>The short, numerous segments of DNA observed in the mixture is the Okazaki fragments of the lagging strand. This is due to the absence of the enzyme involved in the joining of these fragments.</em>

Hence, the answer is DNA ligase.

You might be interested in
What are the various stages of the water cycle.
Lady_Fox [76]

Answer:

There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection.

Explanation:

4 0
3 years ago
How might cloning eventually help humans live longer?
zubka84 [21]

D I think hope this helps

8 0
3 years ago
Read 2 more answers
What is the difference between longitudinal cross transverse and horizontal cuts?
Amiraneli [1.4K]
Horizontal or transverse or axial cut is if you cutting the object with the horizontal plane. The cut would look like ( -- ).
Vertical or longitudinal is cutting in the vertical plane. The cut would look like ( | )

There is also coronal cuts which were a cut with direction from front to back.
8 0
4 years ago
5. Galileo used a(n) that had a lens to bend light.
Kruka [31]

Answer:

v,n v.mnkhj fkhlkfmnj lkmn weol,fgkmj j hwejfq3

Explanation:

kjbdonlfjkh gbfvwef,lknojb gflwj nf

5 0
3 years ago
Read 2 more answers
Name two qualities of the heartbeat that must be observed
Natasha_Volkova [10]

Answer;

-Volumen, and

- Rhythm

Explanation;

-Volumen refers to the force or strengh of the pulse terms are normal full, bounding weak or theady.

-Rhythm refers to the regularity of spacing between beats. terms are regular, irregular, regularly irregularly and intermittent.  Heart rhythm is vital to the function of the heart. If the heart fails to be excited, then no beating occurs.

-A normal heart rate is usually stated as 60 to 100 beats per minute. Slower than 60 is called bradycardia; faster than 100 is tachycardia ("fast heart").

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which experimental question were the students most likely trying to answer? How does thigmotropism affect plant growth? How does
    8·2 answers
  • What is 6.9 times 10 to the 7th power
    9·2 answers
  • What are some characteristics that all animals share?
    7·2 answers
  • Discuss the concept of the null hypothesis and its use in data analysis.
    6·1 answer
  • What phenomena occur due to these plate movements?<br> 2 sentences or 1 if it explained well
    7·2 answers
  • In some types of cattle, brown hair and white hair share dominance. When two cows
    12·1 answer
  • What makes Pluto different from the 8 planets in our Solar System?
    6·1 answer
  • 1. How do Milankovitch cycles affect global temperature
    5·1 answer
  • Sugar, phosphate and nitrogenous bases are components of which of the following?
    5·2 answers
  • Mark the region of the ocean that represents the open ocean.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!