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Afina-wow [57]
3 years ago
14

For both questions, assume that the four types of nucleotides are equally likely to be found in DNA. Calculate how often, on ave

rage, a type II restriction endonuclease is expected to cut a DNA molecule if the recognition sequence for the enzyme has 5 bp. Once in every ___ bp
Biology
1 answer:
Inessa [10]3 years ago
3 0

Answer:

1024 bp

Explanation:

we know that the frequency of any base sequence in DNA is  1/(4ⁿ) . so we can calculate it for 5 bp sequence

for 5 bp recognition sequence= 1/(4⁵)=1024 bp

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Vitek1552 [10]

Answer:

1.

Explanation:

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2. Phloem is the vascular tissue in charge of the transport and distribution of organic nutrients. The phloem is also a pathway to signaling molecules and has a structural function in the plant body.

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4. Guard cells optimize leaf gas exchange in response to changing environmental conditions and their turgor is controlled by alterations in atmospheric CO2 concentration, light intensity, humidity, and the drought hormone abscisic acid.

4 0
3 years ago
The magnetosphere protects Earth from _____.
torisob [31]
The answer is Sold radiation
8 0
3 years ago
Read 2 more answers
4 pts
Nutka1998 [239]

The polio vaccine works as :

It triggers the immune system to produce antibodies to fight the disease causing agent.

Option 1 is the correct answer.

Explanation:

Polio vaccine is attenuated disease causing virus which helps in the production of antibodies to fight the disease. The immunity for polio gets develop in the individual given polio vaccines.

Jonas Salk discovered the the vaccine for polio by using inactivated polio causing virus.

The polio vaccine produces antibodies in the blood when interaction with polio virus is there.

The paralysis of the legs can be prevented as polio virus do not reach the nervous system and spinal cord of the individual.

There are two types of polio vaccines given across the globe:

oral polio vaccine and inactivated polio vaccine (via injection)

4 0
3 years ago
Which is more efficient at exchanging materials, a small or a large cell?
timama [110]
A small cell is more efficient, when the materials enter the cell, they are more evenly distributed compared to a larger cell.
3 0
3 years ago
1. transcription genes that are carried on the X chromosome 2. translation converting the genetic code into the language of prot
TEA [102]

Those are correct vocab words and not a question. There suppose to be match the correct vocab to its definition.

7 0
3 years ago
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