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
Doss [256]
2 years ago
9

Several experiments were required to demonstrate how traits are inherited. Which scientist or team of scientists first demonstra

ted that cells contain some component that can be transferred to a new population of cells and permanently cause changes in the new cells?
Biology
1 answer:
Snowcat [4.5K]2 years ago
8 0

Answer:

Frederick Griffith was the first scientist who discovered that cell contains some components that can be transferred to another cell and cause a permanent change(transformation) in the new cell.

To prove this he performed an experiment in which he took two strains of <em>Streptococcus pneumoniae</em> which contain one rough strain and one smooth strain. Rough strain was non-virulent strain and smooth strain was virulent strain.

So he injected smooth and rough strain in mice and saw that mice die when virulent strain is injected and survive when non-virulent strain is injected. Then he injected heat killed virulent strain in which mice survived.

Then he added remain of heat killed bacteria with live smooth strain of bacteria and infected the mice and saw that the mice was killed by non-virulent smooth strain of streptococcus.

After this experiment he concluded that cells contain some component later identified as DNA which can be transferred to new population of cells and transform these new cells.

 

You might be interested in
Almost 50 percent of water withdrawn in the US, is used up by thermoelectric power plants. The table below shows the amount of w
sp2606 [1]

Answer:

The number of thermal power plants increased between 1950 and 1975.

Explanation:

Here, the table that shows the amount of water withdrawn in billion gallons per year, between 1950 and 2005,

Year              1950            1965            1975            1990           2005

Amount         180              340             420               410              410

Since, 420 > 180,

Also, 50 percent of water withdrawn is used up by thermometric power plants.

Thus, thermal power plants in 1975 > thermal power plant in 1950

Therefore, the number of thermal power plants increased between 1950 and 1975.

Second option is correct.

Note : first option is incorrect.

Since, by the above table,

The least amount of water used by power plant is 180 billion gallons per year,

Thus, third option is incorrect,

Now, the table does not represents energy produced,

Fourth option can not be said correct.

3 0
3 years ago
DOES ANYONE KNOW HOW TO SOLVE THIS??
Nina [5.8K]

Answer:

nope

Explanation:

only on here for points sorry

8 0
2 years ago
Read 2 more answers
Why can only certain parts of DNA be used as DNA fingerprints? A. The parts must code for the insulin protein. B. The parts must
lorasvet [3.4K]
C The parts must be unique to the person
6 0
3 years ago
Read 2 more answers
What is the red giant
iVinArrow [24]
A very large star of high luminosity and low surface temperature. Red giants are thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.
7 0
3 years ago
Read 2 more answers
What is the state of maintaining a stable internal environment despite changing external conditions.
Tpy6a [65]

Answer:

Homeostasis

Explanation:

Homeostasis- state of maintaining a stable internal enviornment despite changing external conditions

7 0
2 years ago
Other questions:
  • The skin synthesizes a precursor of ______ in response to uv radiation in sunlight.
    5·1 answer
  • Do eels breed randomly
    6·1 answer
  • Using what you know about the term mosaic, write a paragraph describing biological mosaic
    5·1 answer
  • Help please will upvote brainly! Use logic to decide the order. Which process has happen first? Drag the box to its correct posi
    10·1 answer
  • The slope of the line for an object’s velocity graph will tell you the _____________________ of the object.
    6·2 answers
  • When a client with a history of asthma takes a walk outside on a windy day with high pollen counts, she may experience an asthma
    8·1 answer
  • State one reason why an individual’s pulse rate increased during exercise.
    10·1 answer
  • What planet was the final destination of the opportunity rover
    15·1 answer
  • The diagram below shows a model of four waves.
    12·2 answers
  • Please help (i guess cells will be under the biology)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!