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Ivan
3 years ago
12

Define symbol and valency?​

Biology
2 answers:
Papessa [141]3 years ago
5 0
  • Symbol means to indicate a element with 2letters or 1 letter.
  • Valency means How much electrons can a element give or take determined by octet rule.
<h3>Ex:-</h3>
  • Calcium is indicated by Ca .
  • It has valency of 2.
Kryger [21]3 years ago
4 0

they are blur

but hope you will under stand and pls pls markas brainliest ans

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A,B,A

Explanation:

Just took test,

Table

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3 years ago
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morpeh [17]

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3 0
3 years ago
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Which of the statements best describes the way you would engineer bacterial cells to produce a human protein?A. One restriction
erik [133]

Answer:

The correct answer is option D. The same restriction enzyme would be used to cut both the donor human DNA and the vector DNA.

Explanation:

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