QUESTION 6 Mike, as student in BIO 225 was performing a catalase test and set up

Question

QUESTION 6 Mike, as student in BIO 225 was performing a catalase test and set up a positive control with a known Catalase Positive bacteria obtaining the expected bubbles when the hydrogen peroxide was added to the bacteria sample. However before he could perform the test with his unknown test bacteria sample he spilled the remaining Hydrogen Peroxide from his lab kit supplies so he used some that he had in his home medicine cabinet. No bubbles were produced after the addition of the hydrogen peroxide. What explanation of these results would you give Mike? Mike should conduct a test with a known Catalase Positive bacteria using the hydrogen peroxide from his medicine cabinet before interpreting his results Mike's test bacteria sample is catalase negative Mike's test bacteria sample is catalase positive Mike can only use eScience supplied hydrogen peroxide for this catalase test QUESTION 7 The term "sticky ends" refers to the sticky/gooey DNA obtained in extraction procedures. True O False

Explanation / Answer

question 7

The answer is false.

sticky ends defined as an end of DNA double helix at which a few unpaired nucleotides of one strand extand beyond the other.

question 10

the second step performed in virtual ELISA procedure is incubation at 370C for 15 min.

question 11

The answer is true

griseofulvin used only for dermatophytosis.

question 12

gram negative intestinal rod shaped bacteria have the ability to tolerate the high concentration of salt.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.