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Schach [20]
3 years ago
15

Describe how the lac operon functions, and explain how it permits E. coli to produce the enzymes needed to break down lactose wh

en it is present in the bacterium.
Biology
1 answer:
Umnica [9.8K]3 years ago
8 0
The lac operation operates under two different types of mechanisms. Lac operon functions when there is a shortage of glucose but lactose is present. It codes for lactase to break down lactose into glucose and galactose. More cAMP is produced as a result.
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iren2701 [21]

Answer:

The correct answer is statement c.

Explanation:

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5 0
3 years ago
Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. If 9 in 10,000 newbor
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Answer:

f(A1) = 0.9700, f(A2) = 0.0300

Explanation:

The frequency of homozygous recessive genotype of children is  

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As per Hardy weinberg's equation, frequency of homozygous recessive genotype is represented by  

q^2

Here q^2 = 0.0009

Thus, frequency of recessive allele would be  

\sqrt{q^2}\\ = \sqrt{0.0009}\\ = 0.03

as per first law of Hardy weinberg

p+q = 1\\p = 1- 0.03\\p = 0.97

Hence, option C is correct

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3 years ago
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cupoosta [38]
4. Petroleum.
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6 0
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Leto [7]

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andreyandreev [35.5K]

Answer:

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Explanation:

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