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mina [271]
3 years ago
9

Is this statement true or false? The period before we have written records is called prehistory. true o false​

Biology
2 answers:
omeli [17]3 years ago
7 0

Answer:

true

Explanation:

mixas84 [53]3 years ago
5 0

Answer:true

Explanation:

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bogdanovich [222]

If mutation destroys the function of the Cas9 gene then the bacteria will not be able to target a specific bacteriophage for destruction upon infection for the second time.

<h3>What is the Cas9 gene?</h3>
  • Cas9 is a 160 kilodalton protein that plays a vital role in the immunological defense of certain bacteria against DNA viruses and plasmids and is heavily utilized in genetic engineering applications.
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To learn more about the Cas9 gene,

brainly.com/question/22549100

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2 years ago
Name the eight levels of classification from most general to most specific
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3 years ago
Beadle and Tatum used which of the following organisms to support their one gene - one enzyme concept?
Rama09 [41]

Answer:

Neurospora.

Explanation:

Beadle and Tatum experiment shows one gene one enzyme hypothesis. According to this, a single enzyme is encoded by each gene. This idea is not accepted in today's world.

Beadle and Tatum performed experiment on the neurospora. They chosed neurospora in their experiment because neurospora shows the fast life cycle with alternation of generation. The genetic experiments can be easily performed on neurospora.

Thus, the correct answer is option (c).

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WINSTONCH [101]

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7 0
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