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
ziro4ka [17]
3 years ago
5

PLEASE HELP List the 4 nitrogen bases for DNA.

Biology
1 answer:
siniylev [52]3 years ago
6 0

Answer:

Adenine 2) Thymine 3) Cytosine 4) Guanine

Explanation:

You might be interested in
An atom has 17 protons,16 neutrons and 17 electrons. What is it’s atomic number
storchak [24]

Answer:

B:17

Explanation:

The atomic number is always the Proton number.

3 0
3 years ago
Read 2 more answers
What prevents self-actualization from being more common?
son4ous [18]
Due to arising conflict in self-image and others.

In Psychology, self-actualization is process where an individual reaches and achieves their full potential and capabilities as a person. In Maslow's model, this is considered to be the highest step in the hierarchy. 
Now, most individuals do not achieve this because of conflict that occurs within the self and with other people. 
3 0
3 years ago
In which generation will there be almost 100% non-singing females if there are no changes in the birds’ environment and interact
mr Goodwill [35]

It would be generation 5 in which there will be almost 100% non-singing females if there are no changes in the birds’ environment and interactions

3 0
3 years ago
The hydrogen ion concentration of a solution is indicated by its<br> ___ value.
rosijanka [135]

The hydrogen ion concentration of a solution is indicated by its <u>pH </u>value.

Explanation:

  • A measure of acidity or alkalinity of water soluble substances (pH stands for 'potential of Hydrogen'). A pH value is a number from 1 to 14, with 7 as the middle point.
  • Under normal circumstances this means that the concentration of hydrogen ions in acidic solution can be taken to be equal to the concentration of the acid.
  • The pH is then equal to minus the logarithm of the concentration value.
  • Values below 7 indicate acidity which increases as the number decreases, 1 being the most acidic.
  • The pH of a solution is a measure of hydrogen ion concentration, which in turn is a measure of its acidity.
  • Pure water dissociates slightly into equal concentrations of hydrogen and hydroxyl (OH−) ions. For a neutral solution, [H+] is 10−7, or pH = 7.
6 0
4 years ago
A simplified model of the human blood-type system has four blood types: a, b,ab and o. thereare two antigens, anti-a and anti-b.
Kay [80]
First calculate the probability of type AB, which is the remainder after subtracting types A, B and O.

P(AB) = 1-(0.34+0.12+0.5) = 1-0.96 = 0.04

Anti-b will react with types B and AB, so 
P(reaction) = P(B)+P(AB) = 0.12 +  0.04 = 0.16

Answer: For this person, the probability of reaction with anti-b is 0.16
8 0
3 years ago
Other questions:
  • The following amino acid sequence is a part of the protein known as human insulin (threonine, alanine, isoleucine, valine) which
    6·1 answer
  • A student has been feeling sick over the last few days and notices a small swollen mass on the side of her neck. Which of the fo
    12·1 answer
  • What fraction of the offspring would be expected to have white hair?
    8·1 answer
  • As humans have converted prairies to pastures and farms, prairie dogs have lost 98 percent of their habitat. Ferrets depend comp
    7·2 answers
  • The Hardy-Weinberg principle states that _____ in a population do not change unless outside factors affect the gene pool.
    6·1 answer
  • I have a question for a graphing homework, "A study is being done on the amount of water needed to grow plants. Five small garde
    8·1 answer
  • Can anyone help with this problem ?
    5·1 answer
  • Which of the following appears most likely to be true? Which of the following appears most likely to be true? As sediment increa
    15·1 answer
  • Weather and climate result from interactions
    7·2 answers
  • 7. What causes greenhouse gasses to absorb heat when gasses like oxygen do not?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!