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
stealth61 [152]
4 years ago
8

A plant cell was grown in a test tube containing radioactive nucleotides, the parts from which DNA is built. Later examination o

f the cell showed the radioactivity to be concentrated in the __________. Select one:
Biology
1 answer:
mamaluj [8]4 years ago
7 0

Answer:

The correct answer is nucleus

Explanation:

DNA is made up of nucleotides, a deoxyribose sugar, and a phosphate group. There are four types of nucleotides which make the DNA that are adenine, guanine, cytosine, and thymine. DNA is formed inside the nucleus and after transcription, it forms RNA that moves out of the nucleus through the nuclear pore.

So if a plant cell containing radioactive nucleotides is grown in a test tube than after examination of cell the radioactivity will be concentrated in the nucleus because DNA is formed in the nucleus and nucleotide are its constituent.

You might be interested in
1. Genes always follow Mendel’s rules of inheritance (true/false)
MariettaO [177]

Answer:

Explanation:

1 false

2 true

3 true

4 false

5 false

6 true

7 false

8 true

9 true

10 false

8 0
3 years ago
Resistance of the skin to invading organisms is __________.
jonny [76]
The correct answer is (d.) innate immunity. The resistance of the skin to the invading organism is innate immunity. The innate immunity is comprising of the cells and mechanism for defending the body from pathogens. The cells recognize and respond to the pathogens that is acting to enter the body.
6 0
3 years ago
The simplest structures that can carry out all of the activities characteristic of life are:
Kitty [74]
I'm pretty sure it's the cell since it's the basic unit of life and can change to carry out any function
7 0
3 years ago
What did the different colored bands signify in each solvent for part 1 of the paper chromatography experiment? what pigments ca
djyliett [7]
Different colored bands in each solvent signify the different materials that are found in the substance that is been analysed.
The green band in the solvent represent the green chlorophyll which are found in leaves. Chlorophyll is the substance which gives the plants the capacity to trap energy from the sun for production of food.
4 0
4 years ago
Read 2 more answers
1. Natural Challenges - Explore the first three websites using the links on the
Serga [27]

Answer:

a. A natural geological challenge that exists in my environment is a fault zone known as the San Andreas Fault. It's a major geological landmark where two tectonic plates meet in California. People in my area are prepared for the event of an earthquake by packing emergency clothes, food, water, shelter, etc. in the event of a major earthquake. Scientists believe that California is past due for a major earthquake in the 6.0-8.0 range that could happen any day now. Hope this helps :)

Explanation:

7 0
3 years ago
Other questions:
  • The central nervous system (CNS) contains a number of components that perform specific functions within the body. Some functions
    13·2 answers
  • Which of these statements are true?
    13·1 answer
  • What types of organisms produce food from inorganic molecules(very few) or sunlight (lots)?
    13·1 answer
  • ANSWER QUICKLY. THIS QUESTION COST A LOT OF POINTS! *where do crevasses form?* a. in the zone of fracture b.below the zone of fr
    15·1 answer
  • When would an object stop emitting radiation? when it reaches -273 Kelvin when it reaches 0 Kelvin when it reaches 0 Celsius it
    14·2 answers
  • What is a bog? could you help me?
    10·2 answers
  • Match the structure of the macromolecule to the description of the function:
    12·1 answer
  • The cilia on this parecium are ised to propel the protozoan and also to
    15·1 answer
  • True or False Heart acts as a pump for the transport of blood​
    6·1 answer
  • Which is the significance of the tunica in plant growth? HINT: It's not B.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!