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svp [43]
4 years ago
8

Which statement best describes an operon? a. several genes, next to each other in eukaryotic DNA, that are transcribed as a sing

le piece of mRNA b. a single gene in prokaryotic DNA that is transcribed as a single piece of mRNA c. several genes, next to each other in prokaryotic DNA, that are transcribed as a single piece of mRNA d. several genes, at different locations in prokaryotic DNA, which are transcribed as a single piece of mRNA
Biology
1 answer:
Dominik [7]4 years ago
5 0

Answer:

c. several genes, next to each other in prokaryotic DNA, that are transcribed as a single piece of mRNA

Explanation:

An operon is a functioning unit usually found in prokaryotes. It contains a group of genes under the control of same promoter such that when transcription occurs, these genes are transcribed together to form a single mRNA product. So the genes of an operon are either transcribed together or not transcribed at all. The mRNA formed is usually a polycistronic mRNA i.e. it codes for more than one protein.

Operon has three parts: promoter, operator and structural genes. Promoter enables the structural genes to get transcribed. Operator in turn controls promoter. It's a segment of DNA to which the repressor molecule binds.  

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Answer:

It would be the last one: All organisms as well as the climate, soil. water, rocks, and other nonliving things

Explanation:

The first one is an organism

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And the last statement is a ecosystem

Hope this helped

7 0
4 years ago
This wood mouse is eating a blackberry. The wood mouse's small intestine will absorb particles of important nutrients, including
alisha [4.7K]

Answer:

B

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Explanation:

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8 0
3 years ago
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Reil [10]

Answer:

A fall-arrest system should be worn while climbing a tree or any tall structure. This will enable the person to have a thing to break or slow his fall if he loses his grasp from the trunk of the tree.

8 0
3 years ago
Si contamos con mas tecnologia ahora,por que creen que no es posible regresar de Marte si lo es regresar de la Luna
AysviL [449]

Answer:

Debido a la gravedad.

Explicación:

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5 0
3 years ago
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Answer:

Explanation:

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3 years ago
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