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Harman [31]
3 years ago
12

Which two substances bind using a lock-and-key mechanism?

Biology
2 answers:
Alla [95]3 years ago
5 0
Enzymes and a single substrate use the lock-and-key mechanism.
The "lock" is the enzyme and the "key" is the substrate
aleksley [76]3 years ago
5 0

Answer:

Enzymes and Substrate

Explanation:

The lock and Key mechanism was first postulated in 1894 by Emil Fischer. In this analogy, the lock is the enzyme which has a definite shape, with only a keyhole which fits exactly to the right key, that its then the substrate. This mechanism is used to explain the way enzymes are specific or can only degrade a certain substrate.

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DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their _______ residu
inessss [21]

Answer:

b. methylation.

Explanation:

Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.

Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.

Transcription can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.

Hence, DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their cytosine residues termed methylation.

For example, CpG island methylation transcriptionally silences about 650 to 800 genes in patients suffering from colorectal cancer.

4 0
2 years ago
A person who has allergies has a compromised immune system because the body's immune system
Wewaii [24]

Answer:

the correct answer is option ( B )

5 0
2 years ago
What do decomposers do with the nutrients that they break down? A. separate them B. absorb them C. store them D. nothing
gtnhenbr [62]
They store them in form of potential energy
6 0
2 years ago
Read 2 more answers
The _________________ is the hereditary material of the cell made up of sequences of four nucleotides arranged in linear strands
mario62 [17]

Answer:

DNA

Explanation:

The answer is DNA. It belongs to a class of molecules called the nucleic acids, which are polynucleotides(long chains of nucleotides)

Hope this helped :)

6 0
2 years ago
Which of the following statements best describes one role of water in living organisms?
Korolek [52]

Answer:

Explanation:

Hydrogen 2 oxygen

7 0
3 years ago
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