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Rainbow [258]
3 years ago
14

In E. coli, there is a mutation in a gene called dnaB that alters the helicase that normally acts at the origin of replication.

Which of the following events would you expect to occur as a result of this mutation?
Biology
1 answer:
kvasek [131]3 years ago
8 0

Answer:

When helicase mutations occur, problems in DNA replication are found. The helicases are proteins that open the 2 strands of DNA to initiate the duplication, they are responsible for breaking the hydrogen bonds between the two DNA chains, thus separating the chains, also they have the function of repairing DNA mutations, if there is mutation in the gene that encodes them, various functions will be absent in the cell.

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Galaxies that are moving away from earth are?
bixtya [17]

Answer:

The galaxies are moving away from Earth because the fabric of space itself is expanding. While galaxies themselves are on the move — the Andromeda Galaxy and the Milky Way, for example, are on a collision course — there is an overall phenomenon of redshift happening as the universe gets bigger.

Sorry someone flagged this

8 0
3 years ago
The cell knows which amino acids are to be attached to the ribosome during translation by reading the ______________ found on th
bekas [8.4K]

Answer:

The correct answer is - codons.

Explanation:

Each mRNA is made up of the codons that are complementary to the DNA sequence during transcription and once it binds with the ribosome, mRNA strand codes are read by tRNA in triplet code that decides which amino acid would be bind to the ribosome during translation to synthesize the polypeptide chain. For instance, if mRNA has CCG codon then tRNA should have GGC anticodon should have bound.

4 0
3 years ago
Why the parent Hydra is different from its offspring​
AlladinOne [14]

Answer:

Hydra reproduce asexually, too. They grow a baby hydra on their side. When the new hydra grows big enough, it falls off and starts a life of its own. In both examples, offspring have exactly the same DNA as the parent and the same characteristics.

Explanation:

*Hope this helps*

5 0
4 years ago
Which of the following is true about radio waves?
Nataliya [291]
A. They penetrate dust clouds 
4 0
3 years ago
When jacob greeted stephanie at the beach, he reached out with the _____________ surface of his hand to grasp the ___________ su
laila [671]

When jacob greeted stephanie at the beach, he reached out with the volar surface of his hand to grasp the palmar surface of her hand for a handshake. As the anterior aspect of their bodies faced each other, jacob noticed that the hair located on the most superior part of Stephanie's head appeared to be a different color than he remembered.

The volar surface is associated with the palm or the sole, the palmer surface is the palm or gripping part of the hand, the anterior aspect of the body is the front part of the body while the most superior part of the human body is the head.


6 0
3 years ago
Read 2 more answers
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