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Drupady [299]
3 years ago
12

There are twenty different types of _____________ which join together in differing sequences and numbers to form different prote

ins.
Biology
2 answers:
stiks02 [169]3 years ago
7 0
There are 20 amino acids, that can join together in thousands of different ways.
goldenfox [79]3 years ago
5 0

Thew correct answer is amino-acids

Amino acids are essential to all life on earth. They are organic molecules comprised out of the amino (NH2) and acidic ( COOH) compound. The twenty amino acids can bound to one another with peptide bonds and form different complex structures called proteins. Proteins are important structural part of cells, enzymes and hormones, and without them the life as we know couldn't exist.

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Which correctly describes the term demographic transition?
Rom4ik [11]
<span> refers to the </span>transition<span>from high birth and death rates to lower birth and death rates as a country or region develops from a pre-industrial to an industrialized economic system.

</span>
4 0
3 years ago
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The word “cumulative” means that something builds on itself. Which example best shows how scientific knowledge is cumulative?
adell [148]

Answer:

B

Explanation:

Cumulative means that someone came up with an idea first and someone later built an idea off of that.  Kepler basing his laws off of Newton's laws is the only option that uses cumulative knowledge.  Everything else is either completely independent or working together neither of which is cumulative.

5 0
3 years ago
Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base
Georgia [21]

Answer:

The type of mutation responsible for changing a base in the mRNA strand, without changing the coding aminoacid or protein, is called a <u>silent</u> mutation.

Explanation:

In a silent mutation occurs the change of a nitrogenous base in one of the codons that encodes an aminoacid, without changing the aminoacid or altering the structure or function of the protein to be synthesized.

In this type of mutations the change of the base does not mean the change of the aminoacid, because some aminoacids can be coded with more than one codon. In the case of Leucine, the codons that encode it are CUU, CUC, CUG or CUA, so even if a base changes, the final protein will be the correct one.

For the other options:

  • <u><em>Missense</em></u><em>: the change of the base in the DNA chain implies the change of the codon in the mRNA and of the encoded aminoacid, in that way a structural and functional alteration of the synthesized protein occurs. </em>
  • <u><em>Nonsense</em></u><em>: the change in the nitrogenous base in the DNA leads to the coding of a termination codon, so that the protein is ultimately incomplete.</em>
  • <u><em>Insertion</em></u><em>: in this case there is the addition of more nitrogenous bases to the DNA chain, with respect to the original one.</em>
3 0
3 years ago
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The human population grows by about 2% each year, showing_____ growth.
stepan [7]

Answer:

C. Exponential

Explanation:

6 0
3 years ago
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Which of the following terms is used to describe the steady breeze of particles flowing out from the sun?
STALIN [3.7K]
<h2>Answer:</h2>

The term is <u>solar wind</u>.

<h2>Explanation:</h2>

The breezy particle which is produced from the corona region of the sun is called as Solar wind.  It is made up of electrons, protons and alpha particles with kinetic energy. Implanted inside the sunlight based breeze plasma is the interplanetary attractive field.  

The sun oriented breeze shifts in thickness, temperature and speed after some time as the sunlight changes. Its particles can get away from the Sun's gravity on account of their high vitality coming about because of the high temperature of the crown, which is caused due to source of origin called corona.

8 0
3 years ago
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