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3 years ago

Why do organisms make one type of protein for a feature while other organisms make two?

Biology

2 answers:

Rasek [7]3 years ago

7 0

Answer:

For every gene, there may be several possible versions. Different genes carry instructions for making different proteins. If the gene copies are heterozygous, two types of protein are produced, if the gene copies are h0m0zyg0us, one type of protein is produced.

Explanation:

Mariana [72]3 years ago

6 0

Answer:

It may mean that the two proteins evolve in slightly different directions, so that one version works better in one set of conditions and the other under different conditions.

Please note that the cost to the organism of making two proteins instead of one is minimal. Basically, it involves adding one coding gene to the tens of thousands of genes that are already there (assuming that the sum of the amounts of the two proteins is about the same as the amount of the original one protein).

Different versions of the same protein may also be made by differential splicing of the mRNA, or by the many mechanisms of post-translational modification.

Explanation:

im lazy so imma leave this out

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Strontium-90 has a half life of 29 years, how much strontium-90 is left from the Chicago pile reactor that was active around 87

agasfer [191]

Answer:

The answer is below

Explanation:

The half life of a substance is the time required by that substance to reduce to half of its initial value. The half life is calculated using the formula:

$N(t)=N_o(\frac{1}{2} )^\frac{t}{t_\frac{1}{2} } \\\\where\ N(t)=quantity\ of\ substance \ remaining, N_o=initial\ quantity\\of\ substance, t=time\ and \ t_\frac{1}{2}=half\ life\ of\ substance$

Given that t = 87 years, half life = 29 years, therefore the quantity of strontium-90 left is:

$N(t)=N_o(\frac{1}{2} )^\frac{87}{29} \\\\N(t)=N_o(\frac{1}{2} )^\frac{t}{t_\frac{1}{2} } \\\\N(t)=N_o(\frac{1}{2} )^3\\\\N(t)=\frac{1}{8} N_o$

That is one-eight of Strontium 90 would be left after 87 years

6 0

3 years ago

BRAINLIEST ASAP!!!! PLEASE HELP! :)

Alla [95]

Answer to #1:
<span>Kilograms

Explanation:
The base metric unit of mass is grams.
Pounds also measure weight, but they are part of the imperial system.

Answer to #2:
Mass

Explanation:
Mass is how much space an object takes up, it is the amount of matter in an object.
Volume, on the other hand, is how much space an object takes up.
</span>

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3 years ago

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Part C

melisa1 [442]

Answer:

because it can change in an instant

Explanation:

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3 years ago

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In 1884, Hans Christian Gram described a method of staining bacterial cells while not staining surrounding animal tissues. Howev

liubo4ka [24]

Answer:

In 1884, Hans Christian Gram described a method of staining bacterial cells while not staining surrounding animal tissues. However, he thought that the staining method he developed was faulty because not all bacteria stained. ... Not all bacteria stained because some have walls that prevents the staining.

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3 years ago

What type of isolation was occurring in the collared lizard population?

Ray Of Light [21]

Answer:

Dispersal

Explanation:

It should be understood that there was a point in time when the collard lizards were going into extinction. This is due to some certain human activities such as bush burning, which caused the death of this particular creature and others.

Therefore, this activity led to the dispersal of the remaining member of the population, which resulted to being isolated on a mountain.

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3 years ago