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Shtirlitz [24]
3 years ago
5

I am a particle in the nucleus of an atom , and I have no electric charge . What am I?

Biology
2 answers:
Liula [17]3 years ago
7 0
An atom is the answer
Korolek [52]3 years ago
4 0
Atom..................................................................................................                                                                                                            
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Generally speaking, which of the following mutations would most severely affect the protein coded for by a gene?a) a base substi
Pavlova-9 [17]

Answer:

Answer is C.

Explanation:

For A and B, a base substitution affects one of the three bases that comprise a codon, the DNA/RNA unit that corresponds to a particular amino acid. If one base is substituted, one codon and therefore one amino acid will be affected. Codons have built-in redundancy, so even by changing one base, the new codon sometimes still corresponds to the same amino acid. Therefore, a base substitution at most affects one amino acid, and sometimes doesn't affect it all.

Frameshift mutations cause a lot more trouble. These occur when you have a deletion or insertion that changes the number of bases in your gene. As a result, the "frame" of the codons changes (everything shifts one way or the other by the number of bases added/removed). This affects EVERY codon downstream of the mutation, so you can imagine that such a mutation would have a bigger effect the closer to the start of the gene it occurs. This is why C is correct.

3 0
3 years ago
The A159E mutation causes an A amino acid to be replaced with an E amino acid (their structures are shown here). What effects do
denis-greek [22]

Answer:

Due to hydrophilic nature of E amino acid, it will make it self to be exposed on protein surface and will disrupt the structure and potentially the function of troponin.

Explanation:

Since the E amino acid is hydrophilic, it will try to be exposed on the surface of the protein and thus will disrupt the tertiary structure and potentially the function of troponin.

6 0
3 years ago
Which option defines parasitism?a symbiotic relationship between organisms in which one of the organisms benefits and the other
Tamiku [17]

Answer:a symbiotic relationship between organisms in which one of the organisms benefits and the other is harmeda symbiotic relationship between organisms in which one of the organisms benefits and the other is harmed

Explanation:

7 0
2 years ago
What can cause an increase in the density of ocean water?
Elden [556K]
Salt

a decrease in temperature and an increasue in salinity
7 0
3 years ago
What is the name of the collapsible, felt-covered structures that Mongolians live in as they tend their herds of sheep and cattl
Iteru [2.4K]

Answer:

These dwellings are called gers, and during the Mongol Empire they consisted of a round, collapsible wooden frame covered in felt.

Explanation:

hope it helps

7 0
2 years ago
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