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
postnew [5]
2 years ago
14

What happens first at each origin of replication?

Biology
1 answer:
schepotkina [342]2 years ago
6 0

Answer:

The answer is C.

Explanation:

At first, an enzymes called Helicase unwind the double helix in a DNA .

You might be interested in
What does the Diagram of the water intake by a Bryophyte look like?
Tatiana [17]
If you want a description of Bryophyte or how it looks like is that:
It is a small green plant that is flowerless and consists of Mosses and Liverworts. It can also be referred as Embrophytes.
5 0
3 years ago
Which is an example of a response to a stimulus
Vlada [557]
C. because stimuli is how your body responds to something, and in this case, someone's heart rate increases WHEN their blood oxygen drop. Do you see how it responds? ;-)
6 0
3 years ago
21. Which step in cellular respiration occurs outside of the inner membrane space of the cell mitochondria? a. Krebs Cycle c. Tr
Marrrta [24]

Answer: c. Transition Reaction

Explanation:

During the transition reaction, Acetyl-CoA is formed and connects the first stage of glycolysis with the Krebs Cycle (Citric Acid Cycle). In the presence of oxygen, pyruvate enters the mitochondria and is oxidized to form a compound of 2 carbon, acetate, with energy and CO2 release. During this process, the acetate binds to a coenzyme(coenzyme A (CoA)) - forming the acetyl-coenzyme A.

The 3 steps:

1. pyruvate is oxidized and forms acetate with liberation of CO2;

2. the energy released in the oxidation of pyruvate is stored in the reduction reaction of NAD+ to NADH + H+

3. The acetate molecule combines with coenzyme A to form acetyl-coenzyme A.

3 0
3 years ago
Which of the following is a correct statement about sugar movemetn in phloem?
Simora [160]

Answer:

a. movement can occur both upward and downward in the plant

Explanation:

The phloem loading causes the accumulation of sugars in the sieved elements generating a negative solute potential (quedas), with a drop in water potential (ψw), so water enters the sieved elements increasing the turgor pressure (ψp). With the discharge of phloem in the drain occurs lower concentration of sugars in the screened elements, increases the solute potential, becoming positive, thus the phloem water potential increases and thus the water leaves the conducting vessel. In the specific case of sugar movement in the phloem, it can be stated that this movement can occur both up and down in the plant.

7 0
3 years ago
hey could someone help me with this immediately!! i will mark u brainiest if u don’t guess or leave a link!!!
svp [43]

Answer:

Chemical energy changes into thermal energy and light energy

6 0
2 years ago
Read 2 more answers
Other questions:
  • An example of a nonspecific defense provided by the skin is
    7·2 answers
  • Which protist exhibits both animal-like and plant-like characteristics?
    14·1 answer
  • What type of cells go through the cell cycle
    5·1 answer
  • 6. (3 pts) After transformation, 40 colonies were present on the plate. What is the transformation efficiency of the competent c
    11·1 answer
  • You observe a high proportion of malarial infections in a small village located in Angola. Malaria is caused by the protozoan Pl
    13·1 answer
  • What is the relationship between evolution and natural selection? Write a long paragraph explain it
    5·1 answer
  • A true-breeding pea plant with round, green seeds was crossed to a true-breeding plant with wrinkled, yellow seeds. Round and ye
    6·1 answer
  • How does the environment influence the likelihood of a species surviving and reproducing​
    7·1 answer
  • solid water is less dense than liquid waterdiscuss one way this property is important for living organisms:
    6·1 answer
  • Mira is testing objects for her science experiment. She has a chart listing the mystery objects' densities, but no other informa
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!