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Zolol [24]
4 years ago
11

Choose all statements that accurately describe the transcription bubble.

Biology
2 answers:
Pachacha [2.7K]4 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]4 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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Describe the structural or environmental change of your chosen macromolecule. Then predict the effect this change will have on t
Wewaii [24]

Answer:

Choosing protein as macromolecule.

Explanation:

The given environmental changes can lead to structural changes in protein as well:

pH - Several amino acids contain sidechains with practical gatherings that can promptly pick up or lose a proton. Changes in pH would prompt an adjustment in the charge of the amino acids, prompting charge-charge attraction or repilsion between non-interfacing amino parts.  

Temperature - High temperatures can prompt protein denaturation. Warmth can upset hydrogen bonding and hydrophobic interactions.  

Reduction or oxidation Environment - Some tertiary structure of protein folding is held by disulfide linkages. Reducing agent will lead to unfolding by introducing itself to break disulfide bonds.

Effect of these change: Sequence of amino acid and structure of protein molecule form determines function, any slight change to a protein's structure may result in the protein to become dysfunctional or produce different product.

4 0
3 years ago
Help me please. Due today.
Debora [2.8K]

Answer:

Okay! I will help! what is the question you need help with?

Explanation:

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8 0
3 years ago
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Sperm are created through meiosis in an area of the testes called the seminiferous tubules. Through which structure do the sperm
Alborosie

Answer:

Epididymis

Explanation:

From the testes, the sperms travel to the epididymis. These structures can be found resting on top of each testes. Fresh out of the testes, sperms are not yet matured and this is where the epididymis takes over. The sperm are stored here and this is where sperm matures. From here, the sperm moves into the vas deferens.

6 0
3 years ago
5. Explain why an artery is an organ.
Fiesta28 [93]

Answer:

Arteries are blood vessels that carry oxygenated blood away from the heart. Their walls are composed of three layers called the tunica intima, tunica media, and the tunica adventitia, which all have different cellular structures and compositions.

Explanation:

Similarly, organs are defined are being a collection of tissues, which are joined in a structural unit to serve a common function.An artery is made up of several types of tissues including: Elastic tissue - this evens out the pressure changes in the vessel when the heart ventricles contract, by stretching and recoiling ...

6 0
3 years ago
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The ball with a mass of 1.5 kilograms is tied to the end of
Hunter-Best [27]

Solve the

potential energy at point B


PE = mgh


Where m is

the mass


G is the

acceleration due to gravity 9.8 m/s2


H is the height


PE = ( 1.5

kg) ( 9.8 m/s2) (0.5 m)


PE = 7.35 J



Solve the

velocity using the


KE = 0.5mv^2


Where ke is

the kinetic energy


M is the

mass


V is the

velocity


Since all

energy is converted to KE


So KE = PE



7.35 = 0.53(1.5)

v^2


V = 3.13 m/s


Read more on Brainly.com - brainly.com/question/2554528#readmore

4 0
3 years ago
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