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anastassius [24]
3 years ago
5

Frederic Griffith discovered transformation in his experiments on mice and Pneumococcus bacteria. He injected the mice with comb

inations of harmless, R-strain bacteria and disease-causing S-strain bacteria. Which combination of bacteria killed the mice and showed that transformation occurred?
A.


heat-killed R-strain and live S-strain


B.


heat-killed S-strain and live R-strain


C.


heat-killed bacteria of both strains


D.


live bacteria of both strains
Biology
1 answer:
qaws [65]3 years ago
6 0

Answer: B. Rough strained and heat killed smooth strain kills mouse

Explanation:

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<h3><u>Answer;</u></h3>

There will be <u>4 different combination of chromosomes</u>

<h3><u>Explanation;</u></h3>
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  • <u><em>Gametes are produced through meiosis which is the type of cell division in which a parent cells divides into four daughter cells each with half the number of chromosomes as the parent, that is the cell are haploid.</em></u>
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The esophagus squeezes food down the digestive tract by an involuntary synchronized muscle movement called ____
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The esophagus squeezes food down the digestive tract by an involuntary synchronized muscle movement called the Peristalsis
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a star the designation HD 12929 in the constellation Aries is approximately 60 light years from Earth's sun.this star could also
Tems11 [23]

Answer:

The star could also be said to be 360 Million Million miles from the earth's sun.

Explanation:

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This is also approximately 6 Million Million Miles.

If we expressed the answer in miles, then we have to multiply 6 by 60.

This is equals to 360.

Therefore, 60 Light years is approximately 360 Million Million miles.

Cheers!

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