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
zheka24 [161]
2 years ago
14

One of your lab partners has followed the recommended procedure of running Gram-positive and Gram-negative control organisms on

her Gram stain of unknown species. Her choices of controls were E. coli and B. subtilis. She tries several times and each time concludes she is decolorizing too long because both controls have pink cells (one more than the other). What might you suggest she try and why?
Biology
1 answer:
kow [346]2 years ago
5 0

Answer:

The correct answer is "I would suggest her to change the Gram positive control from Bacillus subtilis to other bacteria".

Explanation:

Bacillus subtilis, and the species from the genre Bacillus, are known for losing the crystal violet coloration during Gram testing. It is likely that B. subtilis might look pink under the procedure for this reason. I would suggest to change her Gram positive control from B. subtilis to other bacteria. For instance, she could try with Staphylococcus aureus, a widely used bacteria as Gram positive control.

You might be interested in
Which of the following characteristics would indicate why a virus is non-living?
lianna [129]

Answer:

D

Explanation:

4 0
3 years ago
(a) (1 pt) Assume diastolic blood pressure is normally distributed in a certain population, with a mean of 82 mmHg and a standar
Natali [406]

Answer:

2.275% of this population has a diastolic blood pressure less than 60 mmHg

Explanation:

Hello!

Yo have the distribution of the diastolic blood pressure in a certain population. Be X: diastolic blood pressure of an individual, X~N(μ;δ²)

Where

μ= 82mmHg

δ=11 mmHg

You need to calculate the probability of an individual of this population having less than 60mmHg diastolic blood pressure.

Symbolically:

P(X<60)

To obtain the value of probability you need to standardize the value of diastolic pressure so that you can obtain it from the standard normal distribution. The way to standardize the value is to subtract the mean and divide by the standard deviation

Z= (X-μ)/δ~N(0;1)

P(Z<(60-82)/11)

P(Z<-2)= 0.02275

I hope it helps!

3 0
3 years ago
In plants, which process requires lighted conditions?
atroni [7]

Answer:

photosynthesis

Explanation:

Plants make sugars in the presence of sunlight in a process called photosynthesis.

hope this helps and can I please get a brainliest?

3 0
3 years ago
Read 2 more answers
Although DNA is made up of only four different bases, it can encode the information necessary to specify the workings of an enti
VLD [36.1K]

Answer:

Because DNA molecules are extremely long.

Explanation:

DNA molecule is made up of only four types of nucleotides that are adenine, guanine, cytosine, and thymine. These four types of nucleotide encode all the information necessary for the formation and working of the entire organism because each DNA strand is as long as 2 meter which contains millions of base pairs.

The four nucleotides are arranged in the DNA strand with many different combinations which results in the formation of codons sequence that contains all the information about the cell. This long DNA is compressed several times to fit in the nucleus.

7 0
2 years ago
Read 2 more answers
What type of chemical reaction occurs when sodium and chloride combine to form sodium chloride
Margarita [4]
When you combine sodium and chloride together to make sodium chloride (table salt) you get a lot of bright light and a lot of heat. This type of reaction is called exothermic.
5 0
2 years ago
Read 2 more answers
Other questions:
  • Please select the word from the list that best fits the definition
    6·1 answer
  • What is the plant part that gathers the carbon dioxide needed for photosynthesis?
    8·1 answer
  • You have been assigned a DNA stretch. What is the complementary strand when you replicate the template
    12·1 answer
  • Which organism is a fungus-like protist?
    12·2 answers
  • Around a pond, there is a small population of turtles. Some of them have solid dark brown shells and some of them have yellow an
    11·1 answer
  • Water can move freely through the membrane from a higher to a lower concentratio in a transportation process called ____.
    7·1 answer
  • based on the observations . a suggests that male daphnia develop in response to unfavorable enviormental conditions. this is an
    9·1 answer
  • I need some answers for this question
    15·1 answer
  • When warm air cools, it
    13·2 answers
  • What are the steps of the process of evolution?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!