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Zolol [24]
3 years ago
11

Choose all statements that accurately describe the transcription bubble.

Biology
2 answers:
Pachacha [2.7K]3 years ago
5 0

Answer:

Option A and Option B

Explanation:

A transcription bubble is defined as  a molecular structure which is formed when only a few or very limited section of the DNA strand has unwind-ed.

These transcription bubbles are small in size and  in general their size ranges between 12-14 base pairs

An RNA polymerase which is about 9 nt long is responsible for making the DNA sequence ready for producing transcript at the 5' end (a complementary, antiparallel RNA strand )

Rate at which  double stranded DNA molecule slide back and forth for transcription ranges with in 40-50 nt/sec

Hence, both option A and B are correct

IgorLugansk [536]3 years ago
4 0

Answer:

The correct options are options A and B

Explanation:

Hello! Let's solve this!

A transcription bubble forms as transcription begins. The nucleotides are separated so that the complementary RNA to that part of DNA begins to form.

The correct options are options A and B:

A. It moves along the DNA at a rate of about 50 nt / sec It is stationary, with the DNA strand slowly threaded through it at a rate of about 50 nt / sec

B. The growing RNA strand protrudes from the bubble It contains an RNA-DNA hybrid, about 9 nt long

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The description of a cell's energy process is listed below.
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Answer:

The correct answer is c aerobic respiration

Explanation:

The process glycolysis,TCA cycle and electron transport chain are additionally called Aerobic respiration.

              Glycolysis occurs in the cytoplasm and deals with the catabolism or break down of glucose in a sequence of enzyme catalyzed steps to form pyruvate and ATP.

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3 years ago
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6 0
3 years ago
What differs among DNA structures of different species?
weqwewe [10]

Answer:

D) the arrangement of the nucleotides within genes

Explanation:

De-oxy ribo nucleic acid that is basically a polymer of nucleotides. Nucleotides are composed of three basic units: a de-oxyribose sugar unit, a phosphate group and nitrogenous bases that can be Adenine, Gunanine, Thymine and Cytosine.Adenine always pairs with Thymine and Guanine always pairs with Cytosine.

This is a universal composition of DNA in each and every living organism. The genes are a segment of DNA that contain specific sequence of nucleotides and encode for a specific trait of organism such as height, weight, eye color etc. The sequence of nucleotides expresses the trait in the form of protein product during the process of Translation. The products of translation are amino acids and every amino acids encode for a specific protein  in almost  all living organisms.

So, what differs in the specie is the sequence of nucleotides in genes. Infact this is the nucleotide sequence which brings evolution in organism and organisms evolve to form new specie with the passage of time. One major cause of change in nucleotide sequence is mutations due to which the organisms change with time.

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