Answer:
A. true
Explanation:
It is true because the protagonist does not have to be the good guy they are just the main focus.
Answer:
The study of the cell cycle focuses on mechanisms that regulate the timing and frequency of DNA duplication and cell division. As a biological concept, the cell cycle is defined as the period between successive divisions of a cell. During this period, the contents of the cell must be accurately replicated. Microscopists had known about cell division for more than one hundred years, but not until the 1950s, through the pioneering work of Alma Howard and Stephen Pelc, did they become aware that DNA replication took place only at a specific phase of the cell cycle and that this phase was clearly separated from mitosis. Howard and Pelc's work in the broad bean, Vicia faba, revealed that the cell goes through many discrete phases before and after cell division. From this understanding, scientists then identified the four characteristic phases of the cell cycle: mitosis (M), gap 1 (G1), DNA synthesis (S), and gap 2 (G2). The study of these phases, the proteins that regulate them, and the complex biochemical interactions that stop or start DNA replication and cell division (cytokinesis) are the primary concerns of cell cycle biologists.
The most significant progress in this research field came with the demonstration that specific protein complexes involving cyclins were critical for regulating the passage of cells through the cell cycle. These early observations came from biological studies of the cells of rapidly dividing fertilized frog eggs as well as mutant yeast cells that could not divide. The observations suggested that regulation of the cell cycle is conserved throughout eukaryotes, which has since proved to be the case. The mechanism of division in bacteria differs from that of eukaryotes, and the control of their cell cycle is also somewhat different, although again it is linked with DNA replication.
Although the cell cycle is a highly integrated process, distinct areas of interest within this field of study have emerged. For instance, many genes and proteins that influence the passage from one phase of the cell cycle to another have been identified. When their expression is altered by mutation or aberrant regulation, they are usually classed as oncogenes. Other proteins act to hold the cell at distinct points in the cycle (checkpoints) and are known as tumor suppressor genes. Apart from those with a clearly regulatory role, many proteins have important functions in other aspects of the cell cycle; one is replication of DNA and organelles, which is a fascinating process that includes its own repair mechanisms and self-editing. Other fields focus primarily on the mechanical processes of cell cleavage into two daughter cells at the end of mitosis and on the condensation and decondensation of chromatin.
Explanation:
Answer:
<u> industrialization.</u>
Explanation:
In addition to <u>immigration</u>, what is another factor that has changed American identify? The concept of an American identity has changed over time. Major events in US history have also had significant effects on American literature. When the colonists came to the New World from Europe, they began writing letters, essays, and articles that documented their daily experiences and hardships. For example, when slavery and the subsequent civil rights movement were pressing issues in society, many people wrote passionate letters, essays, poems, and biographies that expanded upon all sides of the topic.
Essay writing is given to students in order to test their writing skills and knowledge of a topic.
<h3>How to write an essay?</h3>
Based on the information given, the way to write the essay will be given. Firstly, it's important to decide on your topic.
Research should be done on the topic and create an essay outline. Set your argument in the introduction and develop it with evidence.
Finally, check the content, grammar, formatting, and spelling, of your essay.
Learn more about essays on:
brainly.com/question/24799048
#SPJ1
Answer: The story of the Agony in the Garden is a powerful scene when Jesus, falling down on the ground, begins to pray to his Father from the depths of his heart “My Father, if it is possible, may this cup be taken from me. Yet not as I will, but as you will.” Matthew 26:39
Explanation: The word agony connotes a mental struggle and emotional strain.
Hope this helped! :)