The purpose of the warrant in the body

A conclusion has several purposes. Which of the following choices would accomplish the purpose of inspiring the audience to acti

borishaifa [10]

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:

6 0

3 years ago

Read 2 more answers

Match the definition to the word.

xenn [34]

Answer:

1 . Durable good - able to last a long time .

2 . Collapsible - able to be broken down or folded.

3 . Amiable - natured; friendly .

4 . Accessible - able to be reached .

5 . Despicable - deserving of contempt or scorn; vile .

6 . Attachable - able to be tied or bound to something .

7 . Edible - fit to be eaten.

8 . Eligible - fit to be chosen .

9 . Divisible - able to be divided .

Explanation:

1. Durable is the state of longevity, long lasting condition of anything. It denotes the good quality of the thing which makes it endure and usable for a very long time.

2. Collapsible is the ability for anything to be broken down or made smaller in order to save space. Collapse means to be broken down, thus collapsible is to be made into smaller size so as to be easily manageable.

3. Amiable means to be on good terms with each other. The relationship or condition between two people is amiable means they are friendly and in a good relation, with no enmity between them.

4. Accessible is for something that can be reached or accessed. To be accessible to something is to get to that thing, to get a hold of, to be able to reach.

5. Despicable means to be vile, unpleasant, contemptible. It is a negative trait of someone which means that the person is bad, scornful, hateful.

6. Attachable is something that can be added or attached to anther thing. it means the condition of being bound to something, joined with, or linked with.

7. Edible is the condition of something as good for eating or consumption. it gives the possibility of something as being safe enough to be eaten or consumed.

8. Eligible is the condition of someone or something as fit for the position. It denotes the fit-to-be-chosen condition of the thing or individual for any of the requirement.

9. Divisible is the condition of being in a position to be divided or separated. It enables the thing to be divided or further expanded into smaller units.

4 0

3 years ago

Which of the following sentence is correct

Delvig [45]

A: <span>A clause has a subject and verb but a phrase does not</span>

5 0

3 years ago

How is the ecological system organized?

s2008m [1.1K]

They are basically categorized by habit, populations, groups of animals, ecosystems. <span />

8 0

2 years ago

What does record mean in advance reading class

ArbitrLikvidat [17]

A running record captures both how well a student reads (the number of words they read correctly) and their reading behaviors (what they say and do as they read).

sorry if this is late. hope i helped :)

7 0

1 year ago