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sergeinik [125]
3 years ago
10

What is the function of nitrogen-

Biology
1 answer:
Effectus [21]3 years ago
8 0
I think the answer is C
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DNA samples should be stored in an airtight containers to prevent contamination true or false
Aleksandr-060686 [28]

Answer: True

Explanation:

DNA is a biological evidence. It is a heredity material which is present in all organisms on earth. The DNA in humans can be taken as sample from nails, bones, blood, skin, hair and other sources.

The DNA samples can be taken so as to establish the identity of the culprit, victim or any one which is associated with crime.

The DNA evidence has applicability as a potent evidence in the court of law. Thus utmost care should be taken to preserve it's integrity until it is analysed and presented in the court of law.

Thus the DNA evidence should be collected and preserved in airtight containers so as to prevent the entry of airborne pathogens like bacteria, virus these can contaminate the sample evidence and can make the evidence not of any use.

 

7 0
3 years ago
Kjbfvbkbdfjkbvdjvjfjbhuydhhbfknbrbg
NemiM [27]

Answer:

(kjbfvbkbdfjkbvdjvjfjbhuydhhbfknbrbg)(kjbfvbkbdfjkbvdjvjfjbhuydhhbfknbrbg) = 2(kjbfvbkbdfjkbvdjvjfjbhuydhhbfknbrbg)

Explanation:

(lol)

I'm hoping this question doesn't get reported

8 0
2 years ago
Read 2 more answers
Which of the following activities in a science lab would not be safe to do?
Nadya [2.5K]

I believe it is C.) Tasting a solution you think is edible after creating it in the lab.

I could be wrong though.

8 0
3 years ago
hich of the following amino acids can contribute to the three-dimensional structure of a protein by forming covalent bonds with
ollegr [7]

Cysteine contributes to the three-dimensional structure of a protein by forming covalent bonds with an identical amino acid in another part of the protein.

<h3>What is the Cysteine Structure?</h3>
  • Covalent disulfide bonds form between the sulfhydryl (-SH) groups of cysteines in different parts of a protein are very important in determining the three-dimensional shape of the protein.
  • is a HOOC-CH-(NH2)-CH2-SH proteinogenic amino acid that is semi-essential. Cysteine's thiol side chain frequently functions as a nucleophile in enzyme processes.
  • The sign Cyz is occasionally used when a deprotonated catalytic residue is present.
  • The sign Cym can also be used to usually denote the deprotonated form.
  • The thiol is capable of being oxidized to produce the disulfide derivative cystine, which is crucial for many proteins' structural integrity. Cyx is sometimes used in this context. It carries the E identifier E920 when added to food.
  • The codons UGU and UGC encode the amino acid cysteine.
  • Cysteine and methionine, which contain sulfur, are more quickly oxidized than other amino acids.

To know more about Cysteine with the given

brainly.com/question/14835777

#SPJ4

5 0
2 years ago
What process would be necessary for the movement of calcium ions from areas with low concentrations to areas with high concentra
marysya [2.9K]
Active transport is the process that would be used to transport calcium ions through the calcium pump. 
6 0
4 years ago
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