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Blababa [14]
4 years ago
6

All cells in an embryo have the same DNA. However, the embryonic cells form organs, such as the brain and the kidneys, which hav

e very different structures and functions. These differences are the result of:_________(1) having two types of cells, one type from each parent(2) rapid mitosis causing mutations in embryo cells(3) new combinations of cells resulting from meiosis(4) certain genes being expressed in some cells and not in others
Biology
1 answer:
pochemuha4 years ago
4 0

Answer:

<h2>certain genes being expressed in some cells and not in others</h2>

Explanation:

The DNA is present in every cell of the multicellular organism but that does not mean that every cell will perform the same function.

The function of the cell is decided during the cell differentiation phase the function of the cell is determined by the expression of specific genes. Expression of these genes controls the functions of the cell.

In the given question the differences in the structure and function of the brain and kidney arise due to different expression of genes in different cells.

Thus, the selected option is the correct answer.

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1. Which of the following statements are true?
hammer [34]

Your answers would be:

1. ---- B. A cell cannot be subdivided into smaller units that maintain the living state.

2. ---- The organism is a eukaryote because it has a nucleus.

3. ---- D. Water would flow into them because they are hypertonic to external environment.

If you want to know why:

1. The cell is the basic unit of life or in other words, its the smallest unit that makes up a living thing. It does not subdivided further if you are talking about sustaining life. Yes, it is made up of smaller units of organelles, but these organelles work together as a single unit (as a cell), to do life sustaining processes.

2. The organism is a eukaryote because of the presence of a nucleus. This is one of the main features of a eukaryote that differentiates it from a prokaryote. Prokaryotes to not have a true nucleus.

3. Water would flow into them, causing the cell to swell and eventually burst if the concentration of solutes would not even out before then. The process of osmosis is what brings the water into the cell. The cell would have a higher solute concentration than freshwater. Through osmosis, the water would then go to the area of higher concentration, which would be the cell.


3 0
3 years ago
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Witch is a biotic factor
Ludmilka [50]

Answer:

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Explanation:

7 0
3 years ago
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Which of the following statements about the dark reactions is true? a. Dark reactions occur in the thylakoids of chloroplasts. b
s344n2d4d5 [400]
The correct answer for the question that is being presented above is this one: "<span> d. All of the above." Th</span>e following statements about the dark reactions is true are the following: Dark reactions occur in the thylakoids of chloroplasts; Light energy is <span>converted to chemical energy during the dark reactions; Carbon dioxide is converted to sugar using ATP and NADPH during the dark reactions.</span>
8 0
4 years ago
¿Qué es la glicemia?
Sonja [21]

Answer:

Glucosa (azúcar) en sangre.

Explanation:

4 0
4 years ago
________ is any functional structure within the confines of a cell; literally a. Small organ; it usually has a membrane-based st
olasank [31]

Answer:

Cell organelle

Explanation:

The cell organelle is the small organ-like structure present inside the cell in the cytoplasm.

Different types of cell organelles are present in the cell which performs specific functions like of storage, of digestion of biomolecules like lysosomes, of protein synthesis and many others.

The organelles are usually enclosed by either a single phospholipid membrane like in lysosomes, Golgi apparatus or two lipid layers like in nucleus and chloroplast.

Thus, cell organelle is the correct answer.

6 0
3 years ago
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