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ANTONII [103]
3 years ago
15

What is the purpose of a presumptive blood test?

Biology
1 answer:
Oksanka [162]3 years ago
3 0
The purpose of a presumptive test is to see which substance the sample is.
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The expression 40x2 – 65x + 50 represents the sum of the interior angles of a regular pentagon in degrees. If the interior angle
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Answer: The correct answer is 5(8x^2-13x+10)

Explanation: Factor: 40x^2-65x+50

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The sequence of nucleotides in a messenger RNA molecule (mRNA) is determined by the sequence of nucleotides in a a transfer RNA
ycow [4]

Answer:

D-DNA molecule

Explanation:

The process of copying the sequence of  DNA nucleotide  sequences to the mRNA is called   Transcriptions. It  is the  first stage in gene expression   for protein synthesis, and<u> it involves the unwinding of the DNA double strands  molecules  by enzyme</u><u> </u>DNA Helicase into two  free strands,(by melting the hydrogen bonds between organic  bases), a process   initiated by the binding of enzymes RNA Polymerase to  the promoter sites on the DNA  template; the alignment of the mRNA  nucleotides on the  single DNA template strands in 3'-5  direction; the formation of  hydrogen bonds between the organic bases  of the template DNA  and   that of the messenger RNA single strands,(  and phosphodiesterbonds  within RNA nucleotide ), to form DNA-RNA complex.

The copying is done in  complimentary anti parallel fashion;5'-3' prime. direction.

 The  hydrogen bonds, between the bases  DNA-RNA complexes breaks,and  the releases  the mRNA  which  exists through the nuclear pores.Thus  this <u>leads to copying of the the coded messages as seqeunce of DNA , from the DNA to the mRNA for gene expressions.</u>

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3 years ago
Write a scientific explanation to describe the impact of the infected papaya trees on the toucan population.
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The infected papaya trees will produce less carbohydrates or chemical energy for the toucan. If there were fewer carbohydrates within each papaya, the toucan's muscle cells would not be able to obtain as much chemical energy as they normally do. This chemical energy will be converted into mechanical energy or heat flow, which the toucan uses to fly.

Therefore, the lower amount of mechanical energy and heat flow from the muscle contractions, it would result into a reduced amount of kinetic energy of motion when the toucan is flying.

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3 years ago
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What happens to the organisms with the most favorable traits
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Organisms with the most favourable traits will increase their success rate in a particular environment. Organisms with favorable traits are more likely to reproduce and pass on their traits than organisms without favorable traits, allowing it to survive.
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3 years ago
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1. Which of the following is always single-stranded?
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1. <span>a. messenger RNA (mRNA)

2. </span><span>c. they have different sugars

3. </span><span>a. uracil

Hope this helps!</span>
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3 years ago
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