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
snow_tiger [21]
3 years ago
14

If a sample of DNA is 21% adenine, it would be % cytosine.

Biology
1 answer:
n200080 [17]3 years ago
3 0

Answer: 28%

Explanation:

Use Chargaff's rules which states that 100% is total of all 4 bases and Adenine and Thymine need to have 1:1 ratio and Cytosine and Guanine need to have 1:1 ratio

21% Adenine and 21% Thymine

21% + 21% = 42 100 - 42 = 56 56 / 2 = 28

28% Cytosine and 28% Guanine

You might be interested in
In humans a gene that has been identifoef as causing a type of skin cancer is the
Gennadij [26K]
It Is The Melanoma Gene .
4 0
3 years ago
The white matter of the cerebellum forms the
Anit [1.1K]
It is the B the Arbor Vitae
4 0
3 years ago
Limate warming trends allow plant and insect species to inhabit larger ranges.
solniwko [45]
This is true. when it is warmer the planet and insects can migrate to thses other places so they do not have to die or hibernate through winter.
8 0
3 years ago
Is sperm a type of hormone
Andrej [43]
Sperm production is hormonally driven. Brain hormones govern sperm production and are precisely controlled. So I say yes
7 0
3 years ago
Which of the following distinguishes the 38 organisms in the kingdom Fungi from other Eukaryotic organisms A- Fungi reproduce us
Amanda [17]
<span>Fungi obtain nutrients by absorption</span>
4 0
3 years ago
Other questions:
  • The______ the silica content and the _______ the dissolved gases, the more explosive a valcano will be
    10·1 answer
  • Carbon dioxide enters the atmosphere mainly from the decay of vegetation, but it also comes from volcanic eruptions, the exhalat
    7·1 answer
  • Plz help have 10 min to give in
    5·1 answer
  • Why are the seasons opposite in the northern and Southern Hemispheres
    11·2 answers
  • 15. Use the chart below to determine the amino acid sequence of the following strand of mRNA.
    6·2 answers
  • How does a producer create its own food?
    5·1 answer
  • How do these effects on the gene pools lead to speciation
    11·1 answer
  • Which of the following was NOT used by Darwin in his studies?
    7·1 answer
  • In what way are all living organisms on earth similar?
    10·1 answer
  • The bonds within one water molecule are called
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!