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hodyreva [135]
3 years ago
6

I'm stuck on this multiple choice problem about a base substitution mutation that increases the stability of a protein (see imag

e), can someone explain the answer?

Biology
1 answer:
topjm [15]3 years ago
5 0

D) Frameshift is the answer of these questions

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In the electron transport system
antoniya [11.8K]

Answer:

A. NADH and FADH2 both donate electrons at the same location.

Explanation:

In the respiratory chain, four large protein complexes inserted into the mitochondrial inner membrane transport NADH and FADH₂ electrons (formed in glycolysis and the Krebs cycle) to oxygen gas, reducing them to NAD⁺ and FAD, respectively.

These electrons have great affinity for oxygen gas and, when combined with it, reduce it to water molecules at the end of the reaction.

Oxygen gas effectively participates in cellular respiration at this stage, so its absence would imply interruption of the process.

NADH and FADH₂ electrons, when attracted to oxygen, travel a path through protein complexes, releasing energy in this process.

The energy released by the NADH and FADH₂ electrons in the respiratory chain in theory yields <u>34</u> <u>ATP</u>, however, under normal conditions an average of 26 ATP molecules is formed.

If we consider that these 26 molecules are added to the two ATP formed in glycolysis and two ATP formed in the Krebs cycle, it can be said that cellular respiration reaches a maximum yield of 30 ATP per glucose molecule, although theoretically this number was 38 ATP per glucose molecule.

5 0
3 years ago
Read the passage. Then evaluate the need for a solution and consider each solution suggested. Which solution do you think is mor
katovenus [111]

Answer:

Cat.

Explanation:

Introduction of cat can control the population of mice on the island more effectively as compared to the introduction of disease because the introduction of disease can cause damage to other population of that environment that adversely affected the ecosystem. Cat feeds on mice that act as a controlling agent in this ecosystem that will leads to decrease as well as controls the population from increasing in order to cause damage to the environment.

3 0
3 years ago
In a laboratory, an albino mouse was treated with a chemical, resulting in a somatic mutation that induced a skin tumor. The mou
Len [333]
Answer G. The progeny would be normal because the mutation was somatic, occuring in body cells, not sex cells.
3 0
3 years ago
Explain the difference between exotic species and an invasive exotic species.
Ket [755]
Invasive exotic species are species that interfiere with the natural food chain and are usually foreign
3 0
2 years ago
Read 2 more answers
Despite this, there are some advocates of human cloning. What would be a specific benefit of human cloning? A) The creation of a
MariettaO [177]
The answer is C.

A is not specific

B has nothing to do with humans

C is specific enough and would be pretty handy

D makes no sense

Hope this helps!
7 0
3 years ago
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