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Lilit [14]
2 years ago
6

What can be used to collect and record scientific data

Biology
1 answer:
Aneli [31]2 years ago
3 0

Answer:

Case Studies, Checklists, Interviews, Observation sometimes, and Surveys or Questionnaires are all tools used to collect data. It is important to decide the tools for data collection because research is carried out in different ways and for different.

Explanation:

please mark me brainleast

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Ghella [55]

Answer:

a

Explanation:

95% of scientists agree that global warming is taking place

8 0
3 years ago
Enter the sequence of the DNA coding strand with a 5-3 polarity. DO NOT WRITE 5 OR 3 OR 5' OR 3' IN THE BOX!
Charra [1.4K]

Complete question:

Use the sequence below to answer the following questions  

3’-ACGGATCCTCCCTAGTGCGTAATACG-5’  

5’-TGCCTAGGAGGGATCACGCATTATGC-3’  

1. Enter the sequence of the coding strand with a 5’-3’ polarity

Answer:

coding strand → 5´- GCATAATGCGTGATCCCTAGGCA -3´

Explanation:

When referring to the <u>coding strand</u>, we are talking about the sequence that turns to be the same as the mRNA that results from the transcription of the same DNI segment -switching bases T for U-.  

The coding strand receives that name because it is the sequence that codes for each amino acid composing the proteins.

When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments: coding strand and template strand.  

The coding strand goes in direction 5´ to 3´, while the complementary strand -template strand- grows in direction 3´ to 5´.  

Whenever we have a DNI molecule and we need to determine which strand is the coding one, we just need to look for the presence/absence of start or stop codons.

So, in the exposed example we have two strands, but we do not know yet which one is the coding one.

Conventionally, the first strand is always the coding one. However, let us analyze it by using the presence/absence of codons.

First-strand:

3’-ACGGATCCTCCCTAGTGCGTAATACG-5’

let us write it is 5´to 3´direction

5´- GCATAATGCGTGATCCCTAGGCA -3´

now let us identify the start and stop codons in 5´⇒3´direction.

  • Start codon ⇒ ATG
  • Stop codon ⇒ TAA, TAG, TGA

5´- GCATA<u>ATG</u>CGTGATCCCTAGGCA -3´ ⇒ 1 start codon at the beginning

5´- GCA<u>TAA</u>TGCG<u>TGA</u>TCCC<u>TAG</u>GCA -3´ ⇒ 3 Stop codons

Second strand: We will do exactly the same procedure

5’-TGCCTAGGAGGGATCACGCATT<u>ATG</u>C-3’⇒ 1 start codon near the end

5’-TGCC<u>TAG</u>GAGGGATCACGCATTATGC-3’⇒ 1 stop codon at the beginning

What we did here was to identify in both provided strands, where the start and stop codons are placed. We can see that in the first strand we have the start codon near the beginning, while in the second strand we have it near the end of the sequence. From this information, we can assume that the first strand is the coding one. <em>However, you need to know that some coding sequences do not have start and stop sequences, because they might correspond to a sequence in the middle of a gene.</em>

So, the sequence of the DNA coding strand with a 5-3 polarity is

5´- GCATAATGCGTGATCCCTAGGCA -3´

8 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
Virty [35]
Increase in air pollution: public transport
decrease in trees: plant new trees
loss of bird habitat: nesting boxes
endangered aquatic species: regulate recreational activities
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3 years ago
The 31 major nerves that branch out from the spinal cord connecting it to the rest of the body are the
Cloud [144]
C. spinal nerves

it is the answer to your question.
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3 years ago
When it is summer at the South Pole
Minchanka [31]
When the sun is above the horizon and when the sun is below the horizon it is winter 
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3 years ago
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