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
Olenka [21]
3 years ago
11

As a scientist, you seek to prove that DNA is the hereditary macromolecule by replicating the Hershey-Chase experiment. You cult

ure the lambda phage in heavy and light Cl (Cl-36 is heavy and radioactive - the most abundant is Cl-35, lighter and non-radioactive). You purify the phage from their growth media and infect the E. coli, where will you detect radioactivity?
Select one:
a. Within the E. coli pellet as the DNA has entered the bacterial cells.
b. On the E. coli cell surface (or phage fraction), as part of the phage protein coat.
c. In the supernatent (free liquid) of your test tube
d. Both A and B
e. None of the above
Why is the answer none of the above? Why cant the radioactivity be detected?
Biology
1 answer:
weeeeeb [17]3 years ago
6 0

Answer:

The correct answer is option e. "None of the above".

Explanation:

The Hershey-Chase experiment helped to prove that DNA was the genetic material, by specifically labeling the DNA material of a bacteriophage with phosphorus-32. In this experiment the lambda phage is labeled with heavy and light Cl. CI-36, the one that is heavy and radioactive, corresponds to Chlorine-36. Chlorine is not an element found in DNA such as phosphorus, therefore lambda DNA will not be labeled and no radioactivity will be detected.

You might be interested in
suppose a cell wishes to make a protein that has 100 amino acid. How many water molecules will be created in the making of this
slega [8]
The answer is 99.

Amino acids <span>contain a carboxyl group (carbon-containing) and an amino group (nitrogen containing). Proteins are made by forming peptide bonds between the carboxyl and amino group of amino acids.
</span>If a protein is made of 100 amino acids, that means there are 99 peptide bonds (because the last, 100th amino acid will not bind the next (101st) amino acid). For each peptide bond that is created, one oxygen atom and two hydrogen atoms are taken. Therefore, one water molecule is created for each peptide bond. If there are 99 peptide bonds, 99 water molecules are created.
3 0
4 years ago
Enzyme complexes that break down protein are called _____. lipases ubiquitins amylase proteasomes nucleases
Hitman42 [59]

Proteasomes are a large protein complex present in all eukaryotic cells that break down protein.

<h3>What are proteasomes?</h3>

It is considered one of the main pathways involved in the processes of enzymatic protein degradation.

It is the group of proteins that are associated forming large complexes, whose function is to digest cytoplasmic proteins, generating peptides.

Therefore, we can conclude that proteasomes is a large protein complex present in all eukaryotic cells that breaks down protein .

Learn more about proteasomes here: brainly.com/question/9327071

4 0
2 years ago
Why is hemophilia not a mendelian trait?
riadik2000 [5.3K]

Answer:

C.

Explanation:

Hemophilia could not be a Mendelian trait, due to it being a recessive X-linked trait. This is also why Hemophilia is more common in males.

5 0
3 years ago
A noncompetitive inhibitor decreases the rate of an enzyme reaction by _____.
Sergeeva-Olga [200]

The answer is; B

This type of inhibitors does not bind the active site of the enzyme hence does not compete with the substrate (hence its name non-competitive inhibitors). They bind the enzyme at another site and change its conformation. The substrate may still be able to bind the active site but the efficiency of catalysis can be drastically reduced threatening life. This type of inhibition cannot be cured by increasing substrate levels.

3 0
4 years ago
How does the structure of the cell membrane requires water to move through protein channels?
kodGreya [7K]

Answer:

with the process of osmosis

Explanation:

It is the process of moving the water through the cell membrane when the concentration of water with the two sides of the membrane is different.

The water moves from the place with the less concentration of solute to the place with more solute, as to say from hypotonic to hypertonic place.

It is passive transport.

5 0
3 years ago
Other questions:
  • Which eukaryotic cell part contains directions for cell growth and reproduction? Question 5 options: nucleus ribosomes flagellum
    12·1 answer
  • The ________ photosynthetic reactions convert light energy into chemical energy, which is stored in molecules like ATP. In the _
    5·2 answers
  • The last part for my project it's early and I'm being lazy please look it up? giving lots of points cuz that only fare don't tak
    6·1 answer
  • Why is there controversy about using embryonic stem cells?
    14·1 answer
  • Scientist classify animals and sort them into groups, vertebrate and invertebrate. How do scientists classify humans? A) Scienti
    10·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    5·2 answers
  • How would the solute potential of agricultural soil change from morning to the middle of the afternoon on a hot dry summer day?
    15·1 answer
  • How many consist of human body bones​
    10·1 answer
  • Chromatids are attached to the...
    5·1 answer
  • What organs are involved for heart attack?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!