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marta [7]
3 years ago
14

What's the difference between a TEM microscope and a SEM microscope? Please explain in detail.

Biology
1 answer:
docker41 [41]3 years ago
4 0
Tem and sem microscope are categorised with number of lens
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The materials of the crust have less mass than materials deeper in the earth.<br><br> True<br> False
mezya [45]

Answer:

True

Explanation:

The crust makes up less than 1% of earths mass.

5 0
2 years ago
How is erythrocytes an advantage in exchanging and carrying ​
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Shape of Red Blood Cells Erythrocytes are biconcave discs with very shallow centers. This shape optimizes the ratio of surface area to volume, facilitating gas exchange. It also enables them to fold up as they move through narrow blood vessels.

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3 years ago
A certain Drosophila protein-encoding gene has one intron. If a large sample of null alleles of this gene is examined, will any
Alex

Answer:

a) Yes

b) Yes

c) Yes

d) Yes

Explanation:

a. In the exons?

Yes mutant site will be expected. It will transcript-ed as well and it can be a polypeptide depending on the mutation type.

b. In the intron?

Yes mutant site will be expected. It will be transcript-ed as well and it cannot be a  polypeptide  

c. In the promoter?

Yes mutant site will be expected. It will not be transcript-ed and it cannot be a  polypeptide

d. In the intron-exon boundary?

Yes mutant site will be expected. It will be transcript-ed and it cannot be a  polypeptide

3 0
3 years ago
A polypeptide in a wild type microbe contains the sequence Leu-Pro-Tyr-Ser-Pro. A phenotypic variant of the species has the pept
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The mentioned case is an illustration of the missense mutation. A missense mutation is a kind of nonsynonymous substitution, that is, it is a mutation in which a variation in a solitary nucleotide leads to the formation of a codon, which encrypts for a distinct kind of amino acid.  

When a missense mutation takes place within a DNA, a modification in one of the RNA codon sequences results at the time of transcription. This change in codon will ultimately result in the formation of a different amino acid, which gets presented within a protein at the time of translation. Like in the given case, a change in codon resulted in the substitution of the amino acid tyrosine with an amino acid cysteine.  

8 0
3 years ago
4. The poem "Ithaka" says that cyclops is one of the things you won't encounter unless____
zavuch27 [327]
Unless you bring them into your soul. Or your soul puts them in front of you.
5 0
3 years ago
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