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Serjik [45]
3 years ago
6

which molecule involved in protein synthesis was mentioned in our molecule selves but not in your DNA at work ?

Biology
1 answer:
AfilCa [17]3 years ago
7 0

Answer:

tRNA

Transfer ribonucleic acid (tRNA) is a type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein. tRNAs function at specific sites in the ribosome during translation, which is a process that synthesizes a protein from an mRNA molecule.

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What is the function of the ascending and descending tracts in the medulla oblongata? (module 13. 4c)
kakasveta [241]

The medulla has the ascending and the descending tract which function to link the brain with the spinal cord.

<h3>What is the role of medulla?</h3>
  • Medulla oblongata is the lowermost part of the brain.
  • It is located at the place where the brain and the spinal cord connect thus it carries nerve signals between the brain to spinal cord thus help the entire body to communicate.
  • It controls biological processes like blood pressure, breathing and heartbeat.
  • Ascending tract functions to carry sensory information from the body (e.g.: pain) from the spinal cord to the brain (upwards).
  • Descending tract carry motor information (e.g.: instructions to move the arm) from the brain down the spinal cord to the body (downward).
  • Damage to medulla can lead to respiratory failure, paralysis, or loss of sensation.

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5 0
1 year ago
Why do plants have a cell wall and animals cells don’t?
algol [13]
Cell walls are supporting structures that help the plant to have a fixed shape and protect it from injury. Other than that, it helps to keep the plant turgid so that it can stay firm and upright. Because when it enters a high water potential solution, as water moves in, the water exerts turgor pressure on the cell wall and the cell wall thus exerts an opposing pressure to keep water out. Hence cell wall is needed for the plant.

On the other hand, animal cells do not need to keep the structures, as they have the skeletal system to protect the organs and cushion them against any
external injuries.

I hope that helped
5 0
3 years ago
Read 2 more answers
A force is a push or pull that is described by its
k0ka [10]

I would think that it is B or C

7 0
2 years ago
Point mutation is a type of what
AfilCa [17]

Answer:

A point mutation is a type of mutation in DNA or RNA, the cell’s genetic material.

Explanation:

DNA and RNA are made up of many nucleotides. There are five different molecules that can make up nitrogenous bases on nucleotides: cytosine, guanine, adenine, thymine (in DNA) and uracil (in RNA), abbreviated C, G, A, T, and U.

7 0
2 years ago
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The oldest true fossils are trace fossils called ___________________________ found in australia, and dated between 3.5 to 3.3 bi
xxTIMURxx [149]

The oldest true fossils are trace fossils called Stromatolites found in Australia, and dated between 3.5 to 3.3 billion years old.

Raphael Baumgartner and their team have finally uncovered evidence of organic matter in the ancient rock formations known as stromatolites found at the Dresser Formation fossil site in the Pilbara region of Western Australia. They detail their findings in a new article published in the journal Geology.

With a variety of methods, including scanning electron microscopy, scanning transmission electron microscopy, energy dispersive X-ray spectroscopy, Raman spectroscopy, nano-scale secondary ion mass spectrometry, and stable carbon isotope analysis, the researchers examined the samples in thin slices.

According to the team's analyses, pyrite, a mineral with many tiny pores, makes up the majority of the stromatolites. Additionally, the pyrite contains nitrogen-bearing organic material and strands and filaments of organic material that closely resemble the remains of microbial biofilm colonies.

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7 0
1 year ago
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