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natita [175]
3 years ago
14

After taking a psychoactive drug for many years, Carl stops taking it. He finds withdrawal to be physically painful, because the

drug that he had been taking caused his brain to stop producing its own endorphins. Which drug was he taking?a.Cocaineb.Methamphetaminec.Nicotined.Heroine.Marijuana
Biology
1 answer:
Contact [7]3 years ago
8 0
<h2>Correct Answer is option "d"</h2>

Explanation:

  • Heroine is an drug of opiod plant which is made up of from morphine,a natural substance which taken from the seed pod of the different opium poppy plants.
  • Heroine is found in various form such as in white powder and brown powder.
  • Other common names for heroine are horse,smack & hell dust.
  • People takes heroine in different route of administration such as few people smoke it, some inject, or other used as sniff etc.
  • Heroine enter in brain rapidly and combined with opiod receptors on cells ,it involve in pain and pleasure,controlling heart rate etc.
  • It show both effects short term and long term effect on the brain and body.
  • Hence, the correct answer is option d "Heroine"

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How many possible open reading frames (frames without stop codons) are there that extend through the following sequence? 5'... C
fenix001 [56]

Answer:

There are 4 reading frames without stop codons.

Explanation:

1) To find the possible reading frames you need to separate your sequence in codons (trios)  for the 5'-> 3' sense, first, excluding the first nucleotide, then excluding 2 nucleotides and then not excluding nucleotides.

5'... C TTA CAG TTT ATT GAT ACG GAG AAG G... 3'  NO STOP CODON

5'... CT TAC AGT TTA TTG ATA CGG AGA AGG... 3'  NO STOP CODON

5'... CTT ACA GTT TAT <u>TGA</u> TAC GGA GAA GG... 3'

2)Then you find the complementary sequence (which you already have)

3'... GAA TGT CAA ATA ACT ATG CCT CTT CC... 5'

3'... GA ATG TCA AAT AAC TAT GCC TCT TCC... 5'

3'... G AAT GTC AAA TAA CTA TGC CTC TTC C... 5'

3) Next, you have to obtain the reverse complementary

CCT TCT CCG TAT CAA TAA ACT GTA AG NO STOP CODON

CC TTC TCC GTA TCA ATA AAC TGT AAG NO STOP CODON

C CTT CTC CGT ATC AAT AAA CTG <u>TAA</u> G

4)Now you need to find start (AGT in terms of DNA) and stop codons(<u>TAA</u>, <u>TAG,</u> <u>TGA</u>, also in terms of DNA), in 5->3 and de reverse complementary.

<em />

<em>As you can see, you have for open reading frames that lack of stop codon, unfortunately, they also lack of AGT, the start codon.</em>

I added a table where you can find thestart and stop codons as well as the proteins that they translate to in terms of RNA.

I hope you find this information interesting and useful, good luck!

8 0
3 years ago
Identify the difference between theory and a law.
almond37 [142]

Answer:

Theory is not definite, while Law is.

Explanation:

A Theory is an idea or set of ideas that has proven itself many times, but has certain loopholes that prevent absolute certainty.  Meanwhile, a Law is a Theory without loopholes.

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The answer would be C. A haploid cell.

Gametes are haploid cells made by meiosis. Male and female gametes fuse together during fertilization and form the diploid zygote.
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