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GuDViN [60]
3 years ago
10

"STx-producing bacteria cause over a million deaths a year, but treatment with antibiotics is not effective"

Biology
1 answer:
natita [175]3 years ago
7 0

Answer: Despite the availability of antibiotics that lyse E coli cells, the reason this is NOT recommended in course of treatment is because the antimicrobial agents may trigger the lytic cycle and result in increased toxin expression.

Explanation:

Shiga toxin (Stx) are toxins which are produced by shiga toxin-producing Escherichia coli ( STEC). The antimicrobial agents may also trigger the lytic cycle and result in increased toxin expression.

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How can a pure white mouse help determine the genotype of a black mouse? (Hint: We cannot see genotype but we can see difference
sattari [20]

Answer:

A white mouse is purely recessive, and will produce black offspring if the other mouse contributes a black gene.

Explanation:

If Bb then the offspring will be 50% Bb and 50% bb. This is called a test cross, where we use a recessive to determine the genotype of a dominant phenotype.

8 0
3 years ago
The nurse is required to wear a gown, gloves, goggles, and mask as personal protective equipment (PPE) when caring for an assign
Ivahew [28]

Gown

The nurse would put on the gown first when utilizing personal protective equipment (PPE). The nurse would then put on the mask, goggles, and gloves.

<h3>What is the sequence followed while wearing a personal protective equipment (PPE)?</h3>

STEP 1: GOWN

  • Cover the entire body, from the neck to the knees, the wrists to the end, and the back. 
  • Fasten around the waist and neck.

STEP 2: SHOE COVERS

  • Layer shoes with shoe covers on top.

STEP 3: GLOVES

  • Apply the first set of gloves and inspect them for tears.
  • Thumb hole made in lab coat
  • Thumb through opening in lab coat after pulling it over the hand
  • Put on a second set of gloves (extend to cover wrist)

STEP 4: MASK OR RESPIRATOR

  • As you cup the respirator in your hands, place the nosepiece there.
  • With the nosepiece up, place the respirator under your chin. Pull the top strap over your head, putting it at the back of your head.
  • Pull the bottom strap so that it is around your neck and just behind your ears.
  • Mold the nose using two hands.
  • Put both hands over the mask and take a forceful breath out.
  • If air leaks, adjust the mask.

STEP 5: GOGGLES OR FACE SHIELD

  • Put over face and eyes, then make adjustments to fit

Learn more about PPE here:

brainly.com/question/17663098

#SPJ4

4 0
2 years ago
Eye tests can detect brain tumours. Suggest one other way that brain tumours can be detected. [1]
natulia [17]

Answer:

1. Brain imaging such as CT scans or MRI's can provide evidence of a brain tumor.

2. Brain tumors are hard to treat because of where they are. The brain is the most delicate organ we have. The nerves, veins, blood vessels and more can make treating the tumor very difficult. Brain surgeries can be so complicated when it comes to tumors because any wrong moves and someone can be impaired for life.

Explanation:

I am going off my general knowledge here. I am not entirely sure but I am trying my best to help. Please let me know if it was close or not.

8 0
2 years ago
Forest rangers are genetically testing the deer in the forest after many were found dead. The tests determined that due to inbre
anyanavicka [17]

Answer:

they need to introduce new deer and won't the earth worms and other such primary consumers will thrive because the deer are not there to eat them

Explanation:

6 0
3 years ago
Read 2 more answers
A solution of starch at room temperature does not readily decompose to form a solution of simple sugars because
KonstantinChe [14]

Answer:

E = The activation energy barrier for this reaction can not easily be surmounted.

Explanation:

Starch:

Starch is a polymeric carbohydrate consist of various glucose units join together through glycosidic bonds.

Reason why it is not dissolve at room temperature:

When starch is added into water it form granules with cold water and can be soluble by heating.

At a room temperature the starch does not readily decompose to from the solution by decomposing into simple sugar because the activation energy barrier for this reaction can not easily be surmounted at a room temperature.

7 0
3 years ago
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