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
posledela
3 years ago
7

How is the p+ bacteria culture treated differently from the p- bacteria culture? (a culture is an isolated population of cells.)

what is the purpose of the p- bacteria culture?
Biology
1 answer:
Alenkasestr [34]3 years ago
8 0

Answer:

  1. The P+ culture contains inserted DNA plasmid while P- culture does not contain DNA plasmid.
  2. The purpose of P- bacteria culture is to take it as plasmid control.

Explanation:

  • There are two groups of bacteria using in the lab; one is control group and second is treatment group. Control group is denoted as P- group while treatment group is denoted as P+ group.
  • To differentiate between these two group we used the culture medium called Luria Broth with addition of an antibiotic ampicillin and the sugar arabinose.  
  • The control group (P-) does not have plasmid stay same throughout the process because of absent of sugar arabinose.
  • The treatment group (P+) having plasmid show more growth due to arabinose.
You might be interested in
Which of the following is an organism whose cells each contain a membrane<br> bound nucleus?
DerKrebs [107]

Answer:

D. Eukaryote

Explanation:

An organism that has membrane-bound organelles will have more complex organelles like mitochondria, Golgi apparatus, and ER. These are known as Eukaryotes. Additionally, they will have a nucleus that has the DNA coiled inside. Prokaryotes do not have membrane-bound organelle and the DNA floats in the cytoplasm. Most plants and animals are eukaryotes and all multicellular organisms are too.

3 0
3 years ago
Where does blood go directly after it leaves the inferior (posterior) vena cava?
Romashka [77]

Answer:

right side

Explanation:

7 0
3 years ago
Read 2 more answers
Tamara’s muscle weakness and fatigue becomes progressively worse over the course of the day. This is a hallmark sign of myasthen
vekshin1

Answer: Acetylcholine is released from the axon terminal and diffuses across the synapse to link to a receptor in the surface of the motor end plate.

Explanation:

Sinapsis in biology is a structure in which a neuron cell communicates with another using an electric or chemical sign.

6 0
3 years ago
Helium nuclei are more difficult to fuse than hydrogen nuclei because they have a greater positive charge.
nataly862011 [7]
<span>Helium nuclei have a positive charge of 2+ when observed. Compared to a hydrogen nuclei, we can see that the Helium nuclei is more difficult to fuse as it has a greater charge than Hydrogen 1+. This chemical difference makes the answer true.</span>
6 0
4 years ago
In what ways are autorhythmic fibers similar to and different from contractile fibers?
Leto [7]
I think Autorhythmic fibers are fibers that are self excitable or on their own for example some cardiac muscle. They  repeatedly generate action potentials that trigger heart contractions.They continue to stimulate a heart to beat even when it is removed from the body. In comparison to contractile fibers, autorhythmic fibers are self excitable and do not require nervous system stimulation to trigger contractions. Contractile fibers have stable resting membrane potentials of -90mV, when a contractile fibers reaches threshold by action potential, the voltage gated fast sodium ions channels will open. 
5 0
3 years ago
Other questions:
  • Choose all the answers that apply.
    9·1 answer
  • What is the purpose of the cell cycle?
    8·1 answer
  • A neuron is .a brain cell.b a nerve cell. C a bundle of nerves.d.axon
    5·1 answer
  • In the three phases of driving which is the first phase
    8·1 answer
  • What does occean salinaty refer to
    7·1 answer
  • How many chromosomes are there in a maize egg cell nucleus as compared to a maize pollen cell nucleus?
    14·1 answer
  • Which one of the following is NOT a cause of anemia?
    5·1 answer
  • Toxicology is the study of the negative effects of __ on living things
    13·2 answers
  • This one strawberry plant is sending out a runner that grows into another strawberry plant. What type of reproduction would this
    12·2 answers
  • What is the definition of erosion?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!