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
Firdavs [7]
3 years ago
10

Erwin Chargaff's work on the composition of nucleic acids began in 1944. His findings, which later became known as Chargaff's ru

les, detail the specific pairings that occur in double-stranded DNA molecules.
According to one of Chargaff's rules, a section of DNA molecule that contains 50 base pairs and has 15 adenine bases must also contain -

A. 15 guanine bases

B. 15 cytosine bases

C. 15 thymine bases

D. 15 uracil bases
Biology
1 answer:
MakcuM [25]3 years ago
6 0

Answer:

C: 15 thyme based

Explanation:

DNA molecule

A=T

You might be interested in
The occurrence of discarded fishing gear still catching or entangling fish is known as
MariettaO [177]

Answer:

D. ghost fishing

Explanation:

The nets are also called "ghost nets" being left behind or lost in the ocean by fishermen.

Also, never leave nets in the water. Our Earth needs healing.

6 0
3 years ago
What are the three possible outcomes for species when rapid environmental changes occur
Montano1993 [528]

Rapid environmental changes can cause:

1) Species can become vulnerable to extinction.

2) A decrease or increase of populations.

3) Diversity of species.

3 0
3 years ago
Read 2 more answers
List at least four characteristics of acids
GalinKa [24]

Answer:

1. Aqueous solutions of acids are electrolytes, meaning that they conduct an electrical current.

2. Acids have a sour taste.

3. Acids change the color of certain acid-base indicators.

4. Acids react with active metals to yield hydrogen gas.

Explanation:

I looked it up.

5 0
3 years ago
Which variable should be changed in an experiment to test the best conditions for bacteria to grow? the type of bacteria used th
Setler [38]

An experiment to test the best conditions for bacteria to grow is the material that the bacteria feed upon. <u>Option D.</u>

<u />

Antibacterial hand soap with different concentrations. Dependent variable bacterial growth as measured by the diameter of the zone of inhibition. Exposing Petri dishes to different temperatures can skew the level of bacterial growth they inhabit. Plant height is the dependent variable that responds to changes in the independent variable.

Sunlight is the controlling variable because each plant is exposed to the same amount of sunlight. It is the dependent variable because it measures the amount of plant growth. The dependent variable depends on the independent variable. How much plants grow depends on how much sun they receive. A continuous increase in temperature from a minimum value increases the rate of bacterial growth because the rate of metabolic reactions increases with increasing temperature.

Learn more about An experiment here:- brainly.com/question/17274244

#SPJ1

7 0
1 year ago
The two most common sites of bone marrow collection in an adult are the _______________ and _________________.
Dahasolnce [82]

Answer: Pelvic and sternum

Explanation:

bone marrow biopsy is a procedure that is used to obtain bone marrow usually with syringe for evaluation of various blood cells( leucocytes, erythrocytes ) and also for examination for different blood disesases such as leukemias and lymphomas and diagnose some genetic conditions. The common site for a bone marrow biopsy is the large pelvic bone near the hip and also some samples taken from the sternum (breastbone).

A bone marrow examination or test consists of two separate tests that are done at the same time namely:

1. Bone marrow aspiration that helps collect sample of the liquid portion of the bone marrow

2. Bone marrow biopsy that obtains a sample of the solid material.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is NOT a macromolecule used by cells ?
    6·1 answer
  • How are proteins related to the cell membrane? DNA
    11·1 answer
  • What are the charecteristics of epihtelial tissue
    12·1 answer
  • How does the large amount of DNA fit into the tiny nucleus within the microscopic cells
    8·2 answers
  • What do the two types of fermentation differ
    14·1 answer
  • How much of Earth's water is found in our oceans?
    10·2 answers
  • In flowering plants what structure containing DNA is transported from one plant to another
    15·1 answer
  • Cell inhibitors cause cyclins to be
    9·1 answer
  • A human blood cell is placed in fresh water. As a result, water moves _____ the cell
    9·2 answers
  • How is energy released from chemical bonds
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!