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masya89 [10]
4 years ago
7

Griffith called the process he observed transformation because

Biology
1 answer:
Y_Kistochka [10]4 years ago
3 0

Answer:

c. The harmless bacteria had been transformed.  

Explanation:

Fredrick Griffith carried out the first experiment that showed bacteria can get DNA by transformation in 1928.

He used two different strains of the bacteria Streptococcus pneumoniae a)type-III-S or smooth strain-Covered by a protective polysaccharide capsule hence lethal

b) type II-R or rough strain-Lacked the polysaccharide hence non-lethal

In his experiment he observed heat killed Type-III-S strain was not able to kill the mice. However, when its remains was added with rough strain then the blend was able to kill the mice.

When he collected blood  from the dead mice it had live strains of both smooth and rough type.

He came to a conclusion that non-lethal type II-R strain was transformed into lethal type II-S strain by a "transforming principle"  that was supposed to be the part of dead III-S strain bacteria.

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Mr. Grayson demonstrated an experiment at the beginning of class. Then each student worked in pairs to carry out the
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Repetition best describes what took place during the class.

Explanation:

In experimental work normally repetition carried on repeatedly so that student can achieve more perfection on their assignments. Here Mr. Grayson demonstrated an experiment at beginning of class. Then in the experiment pair wise students collected data to maintain accuracy and repeat the same for recapitulation.

Repetition is the process used to follow to cope up with the new experiments. Experiment needs to be done again and again in repetition to be verified and to draw a final conclusion. In a scientific study practice gives more accuracy and perfection.

5 0
3 years ago
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s2008m [1.1K]

Answer:

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Explanation:

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The cytoskeleton of eukaryotic cells is made of filamentous proteins and provides mechanical support to the cell and its parts.
svetlana [45]

Microtubules doesn't aid in assembling amino acids during protein synthesis.

<h3><u>Explanation</u>:</h3>

Microtubules are the structures that help in the support of the cell and the cellular organelles. These microtubules are formed of the actin myosin and tubulin proteins. These proteins help to keep the cellular organelles in position.

These microtubules also help in the particular placements and transportation of the substances that are needed to be transported from one part of cell to other.

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1. microtubules and microfilaments that support and shape the cell = cytoskeleton

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5. storage sacs = vacuoles


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What do pedigree circles represent
Roman55 [17]

Answer: A pedigree chart displays a family tree, and shows the members of the family who are affected by a genetic trait. This chart shows four generations of a family with four individuals who are affected by a form of colorblindness. Circles represent females and squares represent males.

Explanation: Hoped i Helped!

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4 years ago
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