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NARA [144]
3 years ago
9

Which is a characteristic of all ions?

Biology
2 answers:
Effectus [21]3 years ago
7 0

Answer:

D : They form chemical bonds through electron sharing.

Explanation:

drek231 [11]3 years ago
4 0

Answer:

i believe the answer is d or c sorry if im wrong

Explanation:

u_u

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You wish to produce a human enzyme, protein A, by introducing its gene into bacteria. The genetically engineered bacteria make l
Blizzard [7]

Answer:

The options A, B, and D are all valid.

Explanation:

  • The reason is that some proteins require molecular chaperones if they are to fold properly within the environment of the cell. In the absence of chaperones, a partially folded polypeptide chain has exposed amino acids that can form non-covalent bonds with other regions of the protein itself and with other proteins, thus causing nonspecific aggregation of proteins.
  • The option A) is correct because the protein you are expressing in bacteria is being made in large  quantities, it is possible that there are not enough chaperone molecules in the  bacterium to fold the protein. Expressing the protein at lower levels might  increase the amount of properly folded protein.
  • The option B) is correct as urea should solubilize the protein and completely unfold it. Removing the urea  slowly and gradually often allows the protein to refold. Presumably, under less  crowded conditions, the protein should be able to refold into its proper  conformation.
  • The option C) is not correct as treating the aggregate with a protease, which cleaves peptide bonds, will probably  solubilize the protein by trimming it into pieces that do not interact as strongly with  one another; however, chopping up the protein will also destroy its enzymatic activity.
  • The option D) is correct because overexpressing chaperone proteins might increase the amount of properly folded protein.
  • The option E) is not correct as heating can lead to the partial denaturation and aggregation of proteins to form a solid gelatinous mass, as when cooking an egg white, and rarely helps solubilize proteins.

7 0
3 years ago
Describe the path that the hormone took to regulate Ben’s glucose level
Ad libitum [116K]
She said that he had told me about it but he said that she had went and she had went back and y’all got her mad and she told ya know she said that he had told me that he had went and she told ya that he had went and she
6 0
3 years ago
In snapdragon the gene that affects flower color has two alleles: red (R) and white (W). In heterozygous individuals, the phenot
Leya [2.2K]

Answer:

The correct answer is - 50%

Explanation:

In the heterozygous condition, there is always one allele of dominant and one allele of recessive present together and during gamete formation, they assort independently. The probability of the pink flower that is RW can be found by punnet square:

      R     W

R    RR   RW

W   RW    WW

here, out of four two cases is of heterozygous or pink flower so the ration would be 2/4 or 1/2 or 50%

6 0
3 years ago
Darwin's study of feeding patterns in Galapagos finches was one of the cornerstones of our understanding of adaptation and evolu
vladimir2022 [97]

Answer:

a. different species of birds can divide ecological spaces between them my matching the morphology to the food source.

Explanation:

Beak morphology allows the birds to select the suitable food type. The various species of Galapagos finches differ from each other in beak shape and size irrespective of their origin from common seed-eating stock.

The modification of beak shape and size into several directions allowed the finches to occupy the available empty ecological niches with respect to food types.

Diversification also reduced the competition between them and allowed the finches to colonize various ecological niches in accordance with their respective beak morphology.

6 0
3 years ago
Considering the genetic makeup of homologous pairs, will cells at the end of Prophase I be genetically identical to each other?
frosja888 [35]

The correct answer is: no, the homologous pair will not be identical to each other.  

This is because the alleles on each homologous pair are not necessarily identical.

Also, during the prophase I the exchange of genetic material between 2 homologous chromosomes non-sister chromatids occurs. That results in recombinant chromosomes.


7 0
3 years ago
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