Which term describes the systems of continuous water movement on and in the earth?

Which molecule is active during the last step of DNA replication?

stepan [7]

Correct answer: Option D- DNA ligase

Explanation: In option A, thymine is a nucleotide, so it is present throughout the replication process, wherever it is required. It is added to the newly formed DNA. In option B, Helicase enzyme is active during initiation and elongation stage, as it facilitates the opening of the winded DNA strands. Option C is nucleotidase and it has no role in DNA replication. So, the correct answer is DNA ligase, which is option D.

The okazaki fragments formed during DNA replication are sealed at the end. And in this step, DNA ligase is used. It catalyzes the formation of phosphodiester bond between the nucleotides of okazaki fragments. So it is the last active molecule of the process.

8 0

3 years ago

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Introduction: The 19th century was the time of the Industrial Revolution in England. Most of the new

bagirrra123 [75]

Answer: Light colored peppered moths decreases in number and dark colored peppered moths increases.

Explanation: The population of light colored peppered moths decreases whereas the dark colored peppered moths increases in number because the light colored peppered moths are visible to the predator birds whereas the dark colored peppered moths are not visible due to dark coating of the trees so they are saved from the birds and therefore, increase in population of dark colored peppered moths occurs and decrease occur in light colored peppered moths population.

3 0

2 years ago

A signal molecule in the interstitial fluid binds to a receptor on the cell membrane, triggering an intracellular cascade. Which

Lady bird [3.3K]

<h2>Function of The Cell Membrane</h2>

Explanation:

There are a few unique kinds of this simple development of particles. It could be as basic as atoms moving uninhibitedly, for example, assimilation or dispersion.
Proteins are utilized to help move atoms all the more rapidly. It is a procedure called encouraged dispersion.
It could be as straightforward as acquiring a glucose particle. Since the cell film won't permit glucose to cross by dispersion.
The cells are in a zone where there is a huge focus contrast. For instance, oxygen particle focuses could be exceptionally high outside of the cell and extremely low inside.
Those oxygen particles are little to such an extent that they can cross the lipid bilayer and enter the cell.
This is a water explicit procedure. For the most part, cells are in a domain where there is one convergence of particles outside and one inside.
Since focuses like to be the equivalent, the cell can siphon particles in an out to remain alive. Assimilation is the development of water over the layer

5 0

3 years ago

The Himalayan rabbit's habitat has cold, snowy winters and mild summers. The body is

marysya [2.9K]

Answer:

F. The genes for black hair were activated by specific temperatures

Explanation:

The white hair only grows in cold temperatures. Just because they put an ice pack on the rabbit does not mean that its cold.

8 0

3 years ago

Explain why it's advantageous to have several different organ systems instead of one large system to handle all of the human bod

AfilCa [17]

Answer:

to avoid a general collapse of the system (eventually caused by the failure of the local organs)

Explanation:

An organ system can be defined as a group of organs that work together as a unit in order to perform a particular function. In an organ system, each organ has specific functions and is composed of different tissues that in turn have specialized tasks. Organ systems include, among others, the cardiovascular system, respiratory system, digestive system, urinary system, skeletal system, endocrine system, nervous system, etc.

3 0

3 years ago