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
solmaris [256]
2 years ago
10

In a topoisomerase reaction, the _____ is used as the first nucleophile and the _____ is used as the second nucleophile.

Biology
1 answer:
Alchen [17]2 years ago
8 0

Answer:

a. hydroxyle in tyrosine

b. 3' OH

Request: Please mark me as the Brainliest.

You might be interested in
The Tuskegee syphilis study raised serious concerns about ethical research because the researchers ________.
aivan3 [116]

Answer:

a) withheld information from test subjects about their condition

Explanation:

The Tuskegee syphilis study which was carried between 1932-1972 in the Macon County, Alabama on the African-Americans infected from syphilis.

The U.S. Public Health Service started the study promising the infected persons that they will receive the benefits from the studies like a healthy meal, proper antibiotic medication and other benefits.

But the U.S Public Health Service failed to provide the services mainly the medication in which antibiotic penicillin which could treat the disease was not provided to the patient. As a result of this, syphilis continued in their generations also and people and about 100 subjects died.

They were told that they had bad blood which cannot be treated and thus in 1972, this raised a question over this issue related to ethics as to why the penicillin was not provided as well why the person was kept away from the reality.

Thus, Option-A is the correct answer.

4 0
4 years ago
How does a convection current transport energy around the globe
Helen [10]
The ocean around the globe gets heated up due to the heat around the sun. This hot water is then passed through to the colder regions of the globe by the method of convection. This is a continuous process.
4 0
4 years ago
Use the model to explain how the mitochondrion contributes to the overall function of cell. What would happen to the cell if the
natita [175]

Answer:

Think of mitochondria as batteries that give a power boost to their host cell. without mitochondria modern cell would die for lack of an adequate energy supply.

3 0
3 years ago
Read 2 more answers
What monomers are carbohydrates made of
yarga [219]

monosaccharides, disaccharides, polysaccharides

3 0
3 years ago
Joyce is planting tulips in her garden, and she has 5 red bulbs and 5 white bulbs to plant in one row. What is the probability t
Stolb23 [73]

Answer:

\frac{1}{126} or 0.0079.

Explanation:

Joyce is planting tulips in her garden.

Number of red (R) bulbs = 5

Number of white (W) bulbs = 5

Total number of ways to plant 10 bulbs in one row is

\text{Total ways}=\frac{10!}{5!5!}

\text{Total ways}=\frac{10\times 9\times 8\times 7\times 6\times 5!}{5\times 4\times 3\times 2\times 1\times 5!}

Cancel out common factors.

\text{Total ways}=252

It is given that she randomly plants the bulbs so that all 5 red bulbs are next to each other and all 5 white bulbs are next to each other.

Required outcomes are

RRRRRWWWWW and WWWWWRRRRR

\text{Required outcomes}=2

Formula for probability:

Probability=\frac{\text{Required outcomes}}{\text{Total ways}}

Probability=\frac{2}{252}

Probability=\frac{1}{126}

Probability\approx 0.0079

Therefore the required probability is \frac{1}{126} or 0.0079.

5 0
3 years ago
Other questions:
  • Why are enzymes necessary
    8·1 answer
  • A particular triplet of bases in the template strand of DNA is 5 AGT 3. The corresponding codon for the mRNA transcribed is_____
    15·1 answer
  • Which is not a function of the cell membrane?
    12·1 answer
  • The density of an object is 3 g/cm3. the volume of the object is 5 cm3. what is the mass of the object
    14·1 answer
  • Answer Choices:
    14·1 answer
  • Pls answer quickly the test is timed
    5·1 answer
  • WALLAHI HELP ME THIS IS HARD WALLAHI HELP PLEASE ANYONE
    11·1 answer
  • Which statement is true about prokaryotic cells?<br><br> I NEED HELP ASAP PLEASE
    12·1 answer
  • What is the purpose of a conclusion
    11·2 answers
  • How do cells become different types of tissues that work together in organ systems?.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!