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
Alona [7]
2 years ago
11

3. Suppose you are viewing a sample from a PURE culture and observe both red and purple cocci. What are the possible problems th

at would cause such an inconclusive result?
Biology
1 answer:
Scorpion4ik [409]2 years ago
7 0

Answer:

The culture might not be stained properly or the culture might be too old.

Explanation:

Gram staining is done to differentiate between gram-positive and gram-negative bacteria according to the difference in their cell wall. In gram staining, the gram-positive bacteria appears violet and gram-negative bacteria appear pink in color.

Therefore if a pure culture contains have both red and purple cocci that it can be concluded that the gram stating was not done properly like too much destaining was done or too much safranin was used or maybe the culture is too old so that cell wall of some bacteria degrades.

You might be interested in
Imagine that a protein molecule is to be exported from a cell. describe the pathway that the protein takes from the point of syn
Zielflug [23.3K]
 <span>synthesis in rough endoplasmic reticulum 
packed, processed in golgi apparatus and exported in vesicles via exocytosis</span>
3 0
3 years ago
indicate the sequence of the template strand if a nontemplate strand has the sequence of 5' ATGGGGCGC3'
pshichka [43]
The complementary pair would be 3' TACCCCGCG 5'

I hope I helped!
8 0
3 years ago
Read 2 more answers
What temperature pattern do the isotherms show? temperatures increase from south to north. there is a zone of low temperatures i
777dan777 [17]

The temperature pattern which is being shown by the isotherms is that: D. temperatures increase from the center of the country toward the Southwest.​

<h3>What is an isotherm?</h3>

An isotherm refers to a line that is drawn on a map to join points that are having the same temperature, in order to show the distribution of temperature in a geographical area on Earth's surface.

Based on the weather map in the image attached below, we can infer and logically deduce that temperatures typically increase from the center of the country toward the Southwest.​

Read more on temperature here: brainly.com/question/2339046

#SPJ4

8 0
2 years ago
Mercury is a toxin that is of significant concern due to biomagnification. Explain how mercury found in an aquatic environment c
PIT_PIT [208]

Answer: Mercury has been well known as an environmental pollutant for several decades. As early as the 1950's it was established that emissions of mercury to the environment could have serious effects on human health. These early studies demonstrated that fish and other wildlife from various ecosystems commonly attain mercury levels of toxicological concern when directly affected by mercury-containing emissions from human-related activities. Human health concerns arise when fish and wildlife from these ecosystems are consumed by humans.

During the past decade, a new trend has emerged with regard to mercury pollution. Investigations initiated in the late 1980's in the northern-tier states of the U.S., Canada, and Nordic countries found that fish, mainly from nutrient-poor lakes and often in very remote areas, commonly have high levels of mercury. More recent fish sampling surveys in other regions of the U.S. have shown widespread mercury contamination in streams, wet-lands, reservoirs, and lakes. To date, 33 states have issued fish consumption advisories because of mercury contamination.

These continental to global scale occurrences of mercury contamination cannot be linked to individual emissions of mercury, but instead are due to widespread air pollution. When scientists measure mercury levels in air and surface water, however, the observed levels are extraordinarily low.

Explanation:

3 0
3 years ago
An allele is a form of a gene. In the cross HhSs x hhss, how many alleles does the kitten inherit from the father?
Elina [12.6K]
WhAt is tjis I’m so confused
3 0
3 years ago
Other questions:
  • Below is a list of cell processes.
    9·1 answer
  • A. All living things are made out of cells B. Cells are the smallest unit of life C. All cells have a nucleus and chloroplasts D
    14·2 answers
  • Hope this help good luck
    5·1 answer
  • Pls help thankssssssss
    6·1 answer
  • In older bird guides, the Audubon warbler and the myrtle warbler were classified as two separate species. For many decades, the
    13·2 answers
  • What is today im du/mb so i dont know what today it is
    14·2 answers
  • 1. Which statement is true?
    9·2 answers
  • What is Electron Transport Chain and what happens in that stage of cellular respiration?
    9·1 answer
  • To test the quality of water sources in her area, Shameka collects five samples from each water source and tests the quality of
    8·1 answer
  • ________ can reduce dopamanergic activity and manic episodes.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!