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
Sloan [31]
4 years ago
13

Which is a purine base in dna

Biology
1 answer:
podryga [215]4 years ago
6 0

<em><u>Purines and Pyrimidines are nitrogenous bases that make up the two different kinds of nucleotide bases in DNA and RNA. The two-carbon nitrogen ring bases (adenine and guanine) are purines, while the one-carbon nitrogen ring bases (thymine and cytosine) are pyrimidines.</u></em>

You might be interested in
Five examples of cells in plants and animals​
Diano4ka-milaya [45]

Answer:

Red blood cell Animal

Sperm cell Animal

Phloem cell Plant

Xylem cell

Neuron cell

Explanation:

Hope it helps

6 0
3 years ago
Read 2 more answers
The kcat for Rubisco is 3 sec-1 How long does it takeone<br> subunit of Rubisco to do one reaction.
bekas [8.4K]

Answer:

A subunit of Rubisco takes approximately 0.33 s to perform one reaction

Explanation:

The kcat it's a kinetic first order constant that related the properties of the enzyme substrate complexes in a mechanisms and represents the overall first order process of the transformation of the substrate-enzyme complex into product.

Also kcat can be seen as the turnover number of an enzyme, representing the maximum number of substrate molecules that the enzyme can transform into product per time unit and per active site.

If the kcat is 3 s^-1, it means Rubisco can catalyse the transformation of 3 substrate molecules per second.

So, the time that takes a single reaction, should be the inverse of kcat.

To see it more clearly, the time needed for a single reaction is the time observed divided by the number of reactions done during that time.

In other words:

3 reactions ----------- 1 s

1 reaction -------------- x

  • x=1 reaction/3 reactions.s^-1 = 1/kcat = 1/3 s ~ 0.33 s

So the time that takes one Rubisco subunit to do one reaction is approximately 0.33 s

5 0
3 years ago
What is Precisely means?<br>​
raketka [301]

  • Precisely is defined as exactly, specifically or with precision. ... When it is exactly 1:00, this is an example of a time when it is precisely 1:00. When you carefully place books on a shelf with great precision, this is an example of a time when you place the books precisely on the shelf.

5 0
3 years ago
Read 2 more answers
_____________ can change based on the force of gravity on an object.
liberstina [14]

Answer:

A mass

Explanation:

I learned it in 8th grade.

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!!
patriot [66]
I think A but not sure rly
7 0
3 years ago
Read 2 more answers
Other questions:
  • What does biodiversity mean? A. is the variety of species in an ecosystem B. is the variety of food in an ecosystem C. is the va
    6·2 answers
  • List the four macromolecules
    7·2 answers
  • According to the kinetic theory, what is the kinetic energy of a gas molecule proportional to?
    5·2 answers
  • Which of the following is an example of the letter "o" in a SOAP note?
    14·1 answer
  • 1. A(n)<br> is the basic unit of matter.
    5·2 answers
  • What is an ecosystem
    12·1 answer
  • John wants to show the evolutionary relationship between a lion and a cat and group them based on their similarities and a commo
    15·2 answers
  • What is asoild or gas or liquid
    11·2 answers
  • Which of the following are true of enzymes?
    5·1 answer
  • Which of the following is considered to be a boundary between two different air masses?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!