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Mila [183]
3 years ago
14

Sewage is the most common form of pollution in rivers and streams. Please select the best answer from the choices provided T F

Biology
1 answer:
timurjin [86]3 years ago
8 0

Answer:

Its true

Explanation:

TRUTH SPEAKS

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In gel electrophoresis, how are the dna samples added to the wells?.
jenyasd209 [6]

DNA samples are added into wells with the help of electric current.

<h3>How dna samples added to the wells?</h3>

DNA samples are added into wells at one end of a gel whereas an electric current is applied to pull them through the gel. DNA fragments are negatively charged, so they move towards the positive electrode.

So we can conclude that DNA samples are added into wells with the help of electric current.

Learn more about dna here: brainly.com/question/16099437

5 0
2 years ago
While studying the function of a G protein-coupled receptor you develop a modified GTP molecule that has the same binding capabi
laila [671]

<u>Answer:</u>

Effects Include:

Activates secondary messengers such as cAMP which further activates number of hormones like

  • ADH: production of this hormone causes kidneys to retain more water inside body.
  • GHRH: release growth factors and stimulates growth of organism.
  • ACTH: produces fight or flight responses i.e rise in heart beat, rise in Blood pressure etc
  • TSH: Stimulate the synthesis of Thyroid hormone and enhances the metabolism of body. In rare cases causes Goiter without the deficiency of Iodine.
  • LH: Stimulate follicle maturation and formation of ovules in women.
  • Calcitonin: Decreases blood calcium level by deposition calcium in bones. This effect weakens the muscles.
  • Glucagon: Stimulates glycogen breakdown from liver and muscles and many more effects.

<u>Explanation:</u>

Background Knowledge:

GPCR (G Protien coupled receptors) are present inside plasma membrane in huge amount. As name suggest that these receptors are coupled with G proteins during their inactive state present inside of the cell. During their Inactive state these G proteins are bounded with GDP molecule.

Upon receiving signal molecules from outside of cell alters the shape of GPCR. These receptors also triggers change in G Protein, as a result of this GTP get attached with them. This protein further activates reaction cascades inside of the cell.

What happen if GTP cannot be hydrolyzed to GDP + Pi?

If GTP cannot hydrolyzed in to GDP + Pi than, it cannot be able to dissociate from G proteins. Cascade system doesn't stop and produces many effects on body.

Effects Include:

Activates secondary messengers such as cAMP which further activates number of hormones like

  • ADH: production of this hormone causes kidneys to retain more water inside body.
  • GHRH: release growth factors and stimulates growth of organism.
  • ACTH: produces fight or flight responses i.e rise in heart beat, rise in Blood pressure etc
  • TSH: Stimulate the synthesis of Thyroid hormone and enhances the metabolism of body. In rare cases causes Goiter without the deficiency of Iodine.
  • LH: Stimulate follicle maturation and formation of ovules in women.
  • Calcitonin: Decreases blood calcium level by deposition calcium in bones. This effect weakens the muscles.
  • Glucagon: Stimulates glycogen breakdown from liver and muscles and many more effects.
7 0
3 years ago
In pea plants purple flowers are dominant over white flowers. if two heterozygous purple flower plants are crossed with each oth
olchik [2.2K]
The offspring would most likely be purple pea plants.
4 0
3 years ago
External vs Internal environment
inna [77]

Answer:

Internal environmental factors are events that occur within an organization. External environmental factors are events that take place outside of the organization and are harder to predict and control.

3 0
3 years ago
Explain the process of formation of complex proteins ​
mart [117]
Proteins in a protein complex are linked by non - covalent protein - protein interactions. The process of complex formation comprises of steps namely : ... An encounter complex is formed that either proceeds towards final complex or dissociates again.
3 0
3 years ago
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