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sveticcg [70]
3 years ago
8

How do bacteria protect their own dna from the restriction enzymes they produce?

Biology
1 answer:
sdas [7]3 years ago
4 0
They protect them with there cell walls
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What does Nuclease come from? Like what’s it’s source?
Romashka-Z-Leto [24]

A nuclease (also archaically known as nucleodepolymerase or polynucleotidase) is an enzyme capable of cleaving the phosphodiester bonds between nucleotides of nucleic acids. Nucleases variously effect single and double stranded breaks in their target molecules. In living organisms, they are essential machinery for many aspects of DNA repair. Defects in certain nucleases can cause genetic instability or immunodeficiency.[1] Nucleases are also extensively used in molecular cloning.[2]

Depiction of the restriction enzyme (endonuclease) HindIII cleaving a double-stranded DNA molecule at a valid restriction site (5'–A|AGCTT–3').

There are two primary classifications based on the locus of activity. Exonucleases digest nucleic acids from the ends. Endonucleases act on regions in the middle of target molecules. They are further subcategorized as deoxyribonucleases and ribonucleases. The former acts on DNA, the latter on RNA.[2]

4 0
3 years ago
A scientist found fossils of trilobites in a field. Trilobites are now extinct, but lived in water when they were alive. What ca
sesenic [268]

Answer:

they can conclude that they was not as extinct as you think they was.

Explanation:

in my opinion if im wrong tell me.

3 0
4 years ago
In 1665, robert hooke examined a thin slice of cork using a simple microscope. Hooke observed tiny box-like cavities that were e
Setler [38]

Robert Hooke observed the thin slice of cork cells present in the plant cells. In 1665, Robert Hooke referred these empty tiny box-like cavities as cork cells.

<h3>What is Robert Hooke's Observation?</h3>

In 1665, Robert Hooke used a microscope to examine a tiny box-like empty cavities which are referred to as cork cells. He observed that the cork was made up of tiny units that looked like a honeycomb. He referred to them as cells, and he was the first to find a dead cell. This observation has a major contribution in the cell theory.

Hooke published his results under the title Micrographia, about his microscopic observations on several plant tissues. He is remembered as the coiner of the word “cell,” referring to the cavities he observed in thin slices of cork. The cork cells protect the tree from bacterial or fungal infection. It prevents water loss through the bark.

Learn more about Cells here:

brainly.com/question/3142913

#SPJ1

7 0
1 year ago
CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST !!!
JulsSmile [24]

Answer:

When the rule of 70 applies to population, dividing 70 by the percentage of population growth should equal the time (in years) that the population needs to be double (option A)

Explanation:

The rule of 70 is useful to calculate the time in which a variable of any type can be duplicated. The calculation is done by dividing the number 70 by the percentage of growth of the variable.

<u>If the rule of 70 is applied to the population, it is possible to calculate, based on its growth rate, the time that population would need to double</u>.

If, for example, the growth rate of a population is 3 percent:

70 / 3 = 23,33

This indicates that a population, with a growth rate of 3% would need about 23,33 years to double.

6 0
3 years ago
!!PLEASE HELP IMMEDIATELY!! a snapping turtle has 52 chromosomes. which statement correctly compares the number of chromosomes i
IrinaK [193]

Answer:

The body cell has 26; the sex cell has two.

Explanation:

I think sorry if I'm wrong.

5 0
3 years ago
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