All categories

3 years ago

Unlike in prokaryotic cells, replication in eukaryotic cells

1 answer:

4 0

a. is continuous in two directions until the whole chromosome is copied.

The two identical daughter cells resulting from mitosis and cytokinesis are identical in the following ways:1. Mitosis occurs when the nucleus of the cell divides into two identical nuclei, each with the same type and number of chromosomes. The cell's DNA is duplicated during this phase. Sometimes the cell's DNA isn't copied properly resulting in cancer-type cells. 2. Cytokinesis is when the cytoplasm divides into two identical daughter cells. Each cell is genetically identical and both are a similar size.

You might be interested in

Please indicate which organelle or structure contains the following:

marin [14]

Answer:

Hi Dear ....

The correct Answer Is Mitochondria 

Hope it will help U

7 0

3 years ago

Cholesterol's main role in the membrane seems to be:

olga nikolaevna [1]

Answer:

E) Improve membrane fluidity

Explanation:

Cholesterol constitutes the basic structural element of the skeleton of cell membranes. Without their reinforcement, the membranes would become extremely fluid and lose their consistency. Cholesterol is found in the esterified membranes in its hydroxyl group (OH): with fatty acids, mainly oleic and linoleic, or as cholesterol sulfate. The cholesterol-sulfate polar group is disposed on one of the faces of the membrane that interacts with other polar groups in that area, while its bulky hydrophobic portion is embedded between the apolar parts of the lipids that form the membrane skeleton and They fulfill many other functions, among which the reduction in the permeability of protons and sodium ions, and their participation in signal transmission. Cholesterol is also essential in phagocytosis processes carried out by cells to capture many nutrients and, in general, for the function of cleaning up organic waste produced by macrophages.

The membranes must have a fluid structure so that the integrated proteins can move "horizontally" to interact with their ligands and with other proteins. The fluidity is given by unsaturated fat. With the excess of saturated fat, the membranes become rigid, but only with the necessary unsaturated fat the membranes are extremely fluid and very sensitive to temperature changes. Cholesterol stabilizes the structure of the membranes; In order for them to have the correct structure, they must have the correct proportions of saturated, unsaturated fats and cholesterol. The membranes produced in the laboratory without cholesterol are unstable to temperature changes, drastically modifying their fluidity against the small temperature changes that occur in the physiological range.

In addition to its functions in cell membranes, cholesterol is an important product that metabolism uses as a raw material to make other compounds:

*Bile salts

*Sex hormones

*Hormones of the adrenal cortex (corticosteroids)

*Vitamin D (Calciferol)

3 0

4 years ago

Acetyl-CoA can be generated by which three metabolic pathways for potential use by the Citric Acid Cycle for energy metabolism?

Reika [66]

Answer:

C is the correct option.

Explanation:

Glycolysis is the standard way for the formation of acetyl-CoA, from glucose.

Second, beta-oxidation of fatty acids generates 2 acetyl-coA molecules per cycle.

Finally, the degradation of amino acids generates intermediates of the Krebbs cycle. Occasionally Leucine, tryptophan and isoleucine are directly catalysed in acetyl-CoA.

4 0

3 years ago

What is meant by heridity?

densk [106]

Answer:

Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents

3 0

3 years ago

After reading newspaper report suggesting that drunken driving might have contributed to a recent auto accident, several people

pogonyaev

<h2>Misinformation Effect </h2>

Explanation:

The misinformation effect is known as one of the main examples of the retroactive interference that tends to occur when the information and data presented later will interfere with the ability to recall and retain the past encoded information. Most importantly, the new data and information that an individual receives tend to work backward in time in order to distort the memory of the original event
The misinformation effect leads to the impairment in the past-event memory of an individual that arises due to the exposure to misleading or false information
Hence, the right answer is "example of misinformation effect"

3 0

3 years ago