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
vova2212 [387]
3 years ago
14

In the hershey and chase experiment that helped confirm that dna,not protein, was the hereditary material, what was the key find

ing?
Biology
1 answer:
Stells [14]3 years ago
4 0

Answer:

The experiment conducted in 1952 by hershey and chase consisted in the use of sulfur to track proteins and radioactive phosphorus to track DNA from T2 phages that infect bacterial cells, the key result was that phage proteins were outside the cell during the infection but the DNA was inside the cells because new phages were obtained with radioactive phosphorus. This allows us to conclude that DNA acts as a genetic material of phage T2

You might be interested in
A(n)\ is a system composed of living organisms and their interaction with the surrounding environment, where the main focus is t
vova2212 [387]

Answer:

The correct answer is 4.ecosystem.

Explanation:

An ecosystem is a system, that is, a set of elements that interact with each other, in which such elements are: physical environment, living beings and their interactions (predator-prey, parasite-host, competition, symbiosis, pollination, distribution of seeds , etc.) The interrelation between living beings (competition, parasitism, etc.) occurs through cycles of matter and energy flows on which the functioning of the entire ecosystem depends.

7 0
3 years ago
Land ___1___ includes human activities such as agriculture and construction. The modification of the Earth’s surface due to thes
MakcuM [25]
The correct options are as follows:
1. USE, B.
Land use refers to the function of a particular land, that is, what the land is been used for. For instance land can be used for agriculture, construction of roads, residential apartments, hotels, zoos, etc. Land use differs in the urban and rural settings. In the rural settings, land is usually used for farming and forestry while in the urban setting, land is usually used for construction purposes. 
2. LUC, OPTION B.
The modification of the earth's surface due to land use is called LAND USE CHANGE, LUC. A lot of changes occur when man use lands for different purposes. For instance, examples of land use change include: reduction in forest biomass, conversion of forest and grassland to pasture, etc,
6 0
3 years ago
Read 2 more answers
3.1.2, 3.1.3)
dimaraw [331]

Answer:

C. mRNA serves as the template for DNA, which carries the code to the ribosome for protein construction.

8 0
2 years ago
Consider the phylogenetic tree. Which two organisms are most closely related, based on the tree above?
Aleksandr [31]
Answer: dinosaurs and birds
Plentiful collection of f<span>ossils of early birds and their most immediate predecessors has settled the century-old controversy about the origin of birds. Birds are now safely declared to evolve from a group of dinosaurs known as maniraptoran theropods. Birds have similar shape of the bones as a variety of maniraptorans have.  A host of fossils have shown also that the maniraptorans lay looked alike eggs as that of birds and they resemble the birds in the way they laid their eggs also. Those reasons prove that they are most closely related.</span><span>
</span>
5 0
3 years ago
Read 2 more answers
What is variation and also give it's accumulation. ​
Nana76 [90]
Variation means difference in genetic makeup between individuals within a specie.
4 0
3 years ago
Other questions:
  • List the advantages and disadvantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersi
    6·1 answer
  • A neonate is experiencing respiratory distress and is using a neonatal oxygen mask. an unlicensed assistive personnel has positi
    6·1 answer
  • Which of the following should be included in an effective emergency kit?
    14·2 answers
  • Cardiac muscles
    13·1 answer
  • Is CH4 to CO2 reduction or oxidation?
    5·1 answer
  • Help science!
    5·1 answer
  • A sleepy driver rounds a bend and sees a deer standing in the road. The driver snaps to attention and applies the brakes, averti
    5·1 answer
  • Which factor activates a convection current, starting the flow of a fluid?
    6·2 answers
  • What does an urn-shaped age pyramid represent? A. a stable population growth B. a low birth rate C. a low death rate D. a growin
    8·1 answer
  • A female with genotype FF has children with male with genotype Ff. F=Freckles fæno freckles
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!