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Igoryamba
2 years ago
5

What is a biological question?

Biology
1 answer:
castortr0y [4]2 years ago
5 0

Answer: about you body

Explanation:

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1. Key Concept List the
Ipatiy [6.2K]
<h2>DNA </h2>

Explanation:    

1) Experiment done by Griffith:

  • Griffith used two related strains of bacteria, known as R and S
  • R bacteria were nonvirulent, meaning that they did not cause sickness when injected into a mouse whereas mice injected with live S bacteria developed pneumonia and died
  • Griffith tried injecting mice with heat-killed S bacteria (that is, S bacteria that had been heated to high temperatures, causing the cells to die), the heat-killed S bacteria did not cause disease in mice
  • When harmless R bacteria were combined with harmless heat-killed S bacteria and injected into a mouse, not only did the mouse developed disease and died, but when Griffith took a blood sample from the dead mouse, he found that it contained living S bacteria
  • Griffith concluded that the R-strain bacteria must have taken up what he called a transforming principle from the heat-killed S bacteria, which allowed them to transform into smooth-coated bacteria and become virulent

2) Experiment done by Avery:

  • Avery, McCarty and MacLeod set out to identify Griffith's transforming principle
  • They began with large cultures of heat-killed S cells and, through a long series of biochemical steps progressively purified the transforming principle by washing away, separating out, or enzymatically destroying the other cellular components
  • These results all pointed to DNA as the likely transforming principle but Avery was cautious in interpreting his results
  • He realized that it was still possible that some contaminating substance present in small amounts, not DNA, was the actual transforming principle

3) Experiment done by Hershey and Chase:

  • Hershey and Chase studied bacteriophage, or viruses that attack bacteria
  • The phages they used were simple particles composed of protein and DNA, with the outer structures made of protein and the inner core consisting of DNA
  • Hershey and Chase concluded that DNA, not protein, was injected into host cells and made up the genetic material of the phage

8 0
3 years ago
(WILL MARK BRAINLIEST AND THANK YOU!) **EXTRA POINTS**
liberstina [14]

Answer:

This structure provides support and protection for plant cells = Cell Wall

This is a large, central fluid-filled structure that provides turgidity = Vacuole

A thin semipermeable barrier around the cell which regulates what enters and leaves the cell = Cell membrane

The control center of the cell = Nucleus

It is often described as the cells Power Plant = Mitochondria

This is used by plant cells for photosynthesis = Chloroplast

Hope this helps :)

Plz mark Brainliest :D

Explanation:

The giant blue thing is the vacuole

The thin yellow line is the cell membrane

The yellow and orange ball is the nucleus

The light green thing with zig zag lines is the mitochondria

The dark green thing inside the cell is the chloroplast

The thing outside the cell is the cell wall its green

6 0
3 years ago
Read 2 more answers
What is the function of proteins and carbohydrates that are embedded in a cell membrane?
storchak [24]
Your answer would be B
4 0
3 years ago
Read 2 more answers
Proteins are created in the order of...
Anit [1.1K]

Answer:

B

Explanation:

DNA is made first, which the makes it's counterpart RNA, which makes protein because that's it's job.

7 0
2 years ago
Read 2 more answers
Can someone pls help me?
faust18 [17]

Answer:

Cornstarch.

Explanation:

in most cases food scientist may choose to either use cornstarch or flour to thicken their food.

3 0
2 years ago
Read 2 more answers
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