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
zimovet [89]
3 years ago
10

With help from other enzymes, DNA polymerase acts to join nucleotides together to form a new strand of DNA. During normal DNA re

plication at a replication fork, where does DNA polymerase act?
A.
along only one strand of DNA, where it produces the complementary strand

B.
along both strands of DNA, where it produces complementary strands for each of the original strands

C.
along the histones, or binding proteins, where it helps DNA uncoil and allows it to attract complementary base pairs

D.
in the cytoplasm, where it attracts individual complementary bases and then binds them together
Biology
2 answers:
Licemer1 [7]3 years ago
7 0

Answer:

I think the answer is B

emmainna [20.7K]3 years ago
5 0

B is probably the correct answer.

You might be interested in
Sequence the steps, 1–4, in the order required to create a permanent slide of human cheek cells. [1 mark] Specimen dehydrated Sp
gogolik [260]

Answer:

The correct order is dehydration, embed in wax, cut into sections, staining

Explanation:

There are certain proceedings needed to obtain stained sections of vegetable or animal tissues for their microscope observations.

These steps are:

  • Obtention of the material: The tissue is cut to an adequate size.
  • Fixation: When tissues are extracted from the organism, they suffer autolysis and putrefaction, so they need to be fixated in order to keep their cells in the best state possible. Fixation involves preserving the original morphological and molecular characteristics of the tissue. Fixation avoids autolysis, putrefaction, distortion, and retraction of cells and the tissue that could affect its volume or morphology.  
  • Dehydration. Once fixated, the fixator must be eliminated and the tissue is dehydrated by using a gradual series of solutions with alcohol in ascendant concentrations. Dehydration must be gradual to avoid tissue deformation.
  • Inclusion. To obtain thin cuts that can be observed under the optic microscope, the tissues must be included in a consistent, firm substance, that might be either hydrophilic or hydrophobic. A hydrophobic medium is paraffin wax, that provides hardness and plasticity.  
  • Cut. The tissue included in wax must be cut in slides or sections thin enough to allow the diffusion and penetration of light. A microtome is used to perform these cuts. When using paraffine for tissue inclusion, the cuts are about  5 to 20 micrometers of thickness.
  • Stain. Once the cuts are performed, paraffin wax must be eliminated. This can be done by using an organic solvent. Then the tissue must be stained. Hematoxylin and Eosin are the most common dyes. Animal tissues in general do not have any natural color, so they need to be stained to be observed.  
7 0
3 years ago
If the Pacific Ocean is rimmed by the Ring of Fire, what can we conclude about the plate boundaries in that region?
bulgar [2K]
If the pacific ocean was rimmed by the ring of fire we can conclude that the plate boundaries are constantly moving
3 0
3 years ago
The first organisms to grow in new or disturbed areas are called
maks197457 [2]
The first organisms to grow in new or disturb areas is called pioneer species. 
4 0
3 years ago
There are many, many new moons and full moons that do not result in eclipses. Why is that?
sleet_krkn [62]

Answer:

the sun doesnt align with the earth and moon

7 0
3 years ago
To test for the presence of starch, iodine can be used. A positive reaction results in a black color. A dialysis bag filled with
Bezzdna [24]

Answer:

Diffusion.

Explanation:

According to the information given before the example in the question and considering the fact that the bag was secured on both ends before being placed in the solution, provided that there were no holes on the surface of the bag, the iodine solution could have diffused through the bag into the starch solution hence the color change to black after 30 minutes.

I hope this answer helps.

5 0
3 years ago
Other questions:
  • What is ovulation ? On apex
    10·2 answers
  • Longshore currents form because ____?
    13·1 answer
  • Since most personal watercraft (pwc) do not have brakes, what must be done in order to avoid an obstacle?
    6·1 answer
  • Loggerhead sea turtles lay their eggs in nests on the beach. A new hotel is being built on the beach, and there are many big mac
    10·2 answers
  • E. coli is a species of bacteria that causes many different infections in humans. Certain E. coli strains have developed resista
    14·2 answers
  • Does anyone understand this stuff
    5·1 answer
  • Asexual reproduction is based on a type of cell division known as (mitosis, meiosis) and occurs most often in (more complex, les
    8·1 answer
  • The surface area of a sphere can be approximated as follows:
    5·1 answer
  • Which of the following forms of transport uses ATP directly?
    15·1 answer
  • Paragraph-how does pollution affect ecologist job.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!