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Bumek [7]
4 years ago
5

What is the relationship between operons and transcription units?

Biology
1 answer:
insens350 [35]4 years ago
5 0

<span>The transcription of genes in a single mRNA is known as operon and they often identified by the presence of promoters and terminators. Thus, there are several structural genes that are present in operon and they arranged under a common promoter, regulated by common operator. However, the structural gene that lies a promoter sequence provides a site for RNA polymerase to bind and initiate transcription. </span>

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Which situation most likely involves the hormone gibberellin
Andre45 [30]
The Answer is The hormone ethylene is a gas and disperses easily.

8 0
3 years ago
mitochondria or submitochondrial particles can carry out the following coupled reaction: 2 cyt c (red) 1/2 o2 adp pi -&gt; 2 cyt
shutvik [7]

Answer: Complex IV, also known as cytochrome c oxidase, oxidizes cytochrome c and transfers the electrons to oxygen, the final electron carrier in aerobic cellular respiration. The cytochrome proteins a and a3, in addition to heme and copper groups in complex IV transfer the donated electrons to the bound dioxygen species, converting it into molecules of water. The free energy from the electron transfer causes 4 protons to move into the intermembrane space contributing to the proton gradient. Oxygen reduces via the following reaction:

2 cytochrome c(red) + ½O2 + 4 H+(matrix) -> 2 cytochrome c(ox) + 1 H2O + 2 H+(intermembrane)

Explanation:

In the electron transport chain (ETC), the electrons go through a chain of proteins that increases its reduction potential and causes a release in energy. Most of this energy is dissipated as heat or utilized to pump hydrogen ions (H+) from the mitochondrial matrix to the intermembrane space and create a proton gradient. This gradient increases the acidity in the intermembrane space and creates an electrical difference with a positive charge outside and a negative charge inside. The ETC proteins in a general order are complex I, complex II, coenzyme Q, complex III, cytochrome C, and complex IV.

7 0
2 years ago
You are looking at tissue under a microscope. One cell shows half the amount of DNA of some of the other cells. This cell is mos
AleksAgata [21]
<span>M Phase

Cell division involves the different phases such as G1, G2, M and S phase. Cell division is the mechanism of cells to divide into other cells. Two types of cell division is popularly called the mitosis and meiosis. There basic difference is how they function and how many chromosomes their daughter cells have.
Mitosis is the cell division that happens anywhere in the body for most cells. However, the meiosis happens in the production of gametes are the reason why there are only 23 chromosomes in the sperm and egg cell.
</span>
5 0
3 years ago
Read 2 more answers
DNA AND RNA share a number of similarities but they also differ in certain aspects of their structure which nitrogenous base is
Zarrin [17]
<h2>Answer:</h2>

Uracil

<h2>Explanation:</h2>

Uracil is the nitrogenous base that is found in RNA but not present in DNA.

Cytosine (C) and thymine (T) are the smaller pyrimidines. RNA also contains four different bases. Three of these are the same as in DNA: adenine, guanine, and cytosine. RNA contains uracil (U) instead of thymine (T).

4 0
3 years ago
a stream of water holds thriving bacteria. if drought conditions caused the stream to dry up, how would the bacteria mostly like
Lilit [14]

Answer:

A stream of water holds thriving bacteria. If drought conditions caused the stream to dry up, the bacteria mostly likely respond to survive by <u>transforming into endospores.</u>

<u></u>

Explanation:

The bacteria transform into the hardcore bacterial endospores. These structures of bacteria are adapted to stresses in the environment. The bacteria can remain dormant for long periods with its genetic information securely protected under a tough coating. It is also very hard to kill bacteria endospores because they are resistant to heat, dehydration and even disinfectants.

Learn More:

For more on endospores check out;

brainly.com/question/247607

brainly.com/question/13187855

#LearnWithBrainly

4 0
3 years ago
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