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galben [10]
2 years ago
11

What are the characteristics of a compound microscope?

Biology
1 answer:
pickupchik [31]2 years ago
5 0
<h2>Answer:  The characteristics of a compound microscope is ...</h2>

Explanation:

  1. The compound microscope consisting two type of lens.
  2. The lens which is near the object, we call it objective lens. the lens which is near the eyes, we call it  eye piece.
  3. The lenses are fitted at the end of the metal tube .
  4. The object to be magnified is placed just outside the principal focus of the objective so that its real image is formed on the other side of objective.
  5. The position of the eye piece is so adjusted to form the final image at the near point .
  6. The final image is virtual ,inverted and magnified .
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1. Muscles move tendons attached to bone by performing an action called _______.
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Note the two transcribed and translated DNA strips below. The two strips are identical except for a point mutation, where the fi
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Full question attached

Answer/ Explanation:

The original DNA sequence has a point mutation changing a G to a T. The resulting mRNA produced is always complementary to the DNA from which it is synthesised, so the original mRNA sequence has a T, whereas the mutated mRNA has a U. The tRNA is complementary to the mRNA, so the original has a G, and the mutated has a T.

<h3>Original DNA</h3>

GTTGGCGAATGAACGGAGGCTGACGTCTAAGCCTAGAAAAATTGG

RNA

CAACCGCUUACUUGCCUCCGACUGCAGAUUCGGAUCUUUUUAACC

tRNA

GUUGGCGAAUGAACGGAGGCUGACGUCUAAGCCUAGAAAAAUUGG

<h3>_______________________________________________</h3><h3>Mutated DNA</h3>

GTTGGCGAATGAACTGAGGCTGACGTCTAAGCCTAGAAAAATTGG

RNA

CAACCGCUUACUUGUCUCCGACUGCAGAUUCGGAUCUUUUUAACC

tRNA

GUUGGCGAAUGAACTGAGGCUGACGUCUAAGCCUAGAAAAAUUGG

This is a point mutation called a substitution. This does not affect the entire sequence of the protein, because the mutation is "in frame" meaning the mRNA sequence is still read in the same way by the protein producing machinery. However, it does change the 5th codon from UGC to UGU. If we look up the genetic code, we can see that both of these codons code for cysteine, so there will be no change in the amino acid sequence of the protein

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Which of Earth's layers is formed by volcanic activity?
mojhsa [17]
I believe it is the crust 
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