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
ikadub [295]
3 years ago
12

How many molecules of DNA would result from one molecule after four cycles of PCR

Biology
2 answers:
AlexFokin [52]3 years ago
8 0

Answer: B.16

Explanation

The polymerase chain reaction (PCR) is a technique used in molecular biology to make millions of copies DNA from a small amount of it. To acomplish this, short segments of DNA called primers are designed to each chain of the DNA that is going to be copied. Then, the DNA polymerase adds nucleotides to theose primers that will be complementary to the DNA chains. After one molecule is amplified, a new molecule is amplified using that one and so on and so forth. <u>Then, 2 chains are amplified in one cycle to get 2 molecules</u> (with two chains each) Thereby, the replication rate of DNA is exponential, then it is calculated as:

1 x (2^4) = 16 DNA molecules.

1= molecule

2= chains per molecule

4= number of cycles

lesya [120]3 years ago
4 0
I think the answer should be 16 because 1×2^4=16
You might be interested in
A true hypothesis Astarte with word ________ and list the IV , continues with ______ and states the DV , and closes with _____ t
frozen [14]
<span>A true hypothesis starts the with word if and list the IV , continues with then and states the DV , and closes with because to explain the reasoning.</span>
8 0
2 years ago
Skin pattern in a new frog species is controlled by three alleles of the same gene. Two alleles, Green Spots and White Stripes,
11Alexandr11 [23.1K]

Answer:

if I'm not mistaken it should be E

Explanation:

the skin of a frog is unique. it's always a pattern of colors. although it's provable, it's very rare for a frogs to have a uniform of one color.

8 0
2 years ago
Identify the true statements below
Masja [62]

Answer:

where is the statements??

Explanation:

Your question is incomplete.... plz give me the statements

so I can help!!!

8 0
3 years ago
Read 2 more answers
In a hypothetical situation, a bacterium lives on the surface of a leaf, where it obtains nutrition from the leaf's nonliving, w
Rashid [163]

Answer:

The correct ecological sequence regarding this case, to answer your question: What is the correct sequence of ecological roles played by the bacterium in the situation decribed here, would be: 1. mutualism, 2. Parasitism and finally 3. Nutrient recycler.

Explanation:

Ecological balance comes when species interact, and help each other out, by carrying out tasks that the other species cannot perform. When this happens, both species benefit from the presence of the other, and thus are kept in balance. However, conditions may change that will affect this balance.

In this case, we have a bacteria and a plant that are ecologically balanced with each other: the plant provides nutrients to the bacteria, and the bacteria helps the plant by maintaining other microorganisms away. However, when the conditions of the plant change, giving the bacteria access to its insides, which are more nutrient-rich, than the outside, these bacteria do not waste time and infect the plant, until it kills, and then decomposes, the plant. Given the sequence, the first part is known as mutualism: to species sharing benefits. Parsitism, because the bacteria infected the plant and lived now off it, destroying it. And finally, nutrient recycler because the bacteria breaks down the plant, decomposes it, returning to the ecosystem nutrients that were inside the plant.

7 0
3 years ago
Read 2 more answers
Which statement explain what will happen during the Asteroid Redirect Mission? Check all that apply.
Lady_Fox [76]

Answer:

The main objective of the Asteroid Redirect Mission was to develop deep space exploration capabilities needed in preparation for a human mission to Mars and other Solar System destinations per NASA's Journey to Mars flexible pathways.

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • In what way does the shape of a molecule affect how the molecule is involved with living systems?
    8·2 answers
  • In a scientific experiment, a is any factor that can change or be changed
    11·1 answer
  • Which is the answer? Help me please!
    14·1 answer
  • Which of the ing is not a polymer? cellulose, glucose, chitin, DNA or starch?
    14·1 answer
  • A piece of metal with a length of 2.83 cm was measured using four different devices. Which of the following measurements is the
    13·1 answer
  • 3) Scientists who have examined the fossil record have noted that some species have changed very little over long
    7·1 answer
  • All of the following are true regarding solids except for:
    13·1 answer
  • CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU
    9·1 answer
  • Sally is comparing and contrasting a Placement/Internship SAE and a School-Based Enterprise SAE. What information would best com
    8·1 answer
  • What is the most valid conclusion regarding ocean depth temperature, based on the data? The temperature and salinity increase wi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!