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jonny [76]
3 years ago
12

How does gene expression lead to differentiation

Biology
1 answer:
ExtremeBDS [4]3 years ago
3 0
Every cell of the organism has the same DNA sequence and same genes. However, not all genes are expressed in every single cell at the same time. Only those genes necessary for a specialised function of a specialised cell are expressed in the specialised cell. For example, skin cells have some different proteins than nerve cells. Genes responsible for those "skin proteins" are activated in skin cells and are turned off in nerve cells.
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Ideally, the nasal septum will devide the nasal cavity equally, but it is common for this partition to be slightly off center. A
boyakko [2]

Answer:

A deviated septum occurs when bone and the cartilage that divides the nose septum become off-center which results in two unequal nasal septum. This makes one nasal chamber smaller and another larger.

This abnormality causes difficulty in breathing because of the congestion and blockage of the smaller nasal cavity. Due to this congestion airflow in the lungs is hindered which results in lack of oxygen and difficulty in breathing.

Apart from difficulty in breathing it can leads to nose bleeding, loud snoring during sleep, facial pain, headache, and in respiratory infections breathing become more difficult.

A deviated septum can develop due to some trauma or during surgery but some people are born with this abnormality.

8 0
3 years ago
In _________, a small sample of fetal cells is drawn by a needle inserted into the amniotic fluid surrounding the fetus. It prov
ValentinkaMS [17]

Answer:

the prenatal procedure  

Explanation:

7 0
3 years ago
Read 2 more answers
Which element is most similar in chemical reactivity to nitrogen (N)?0
tamaranim1 [39]

Answer: Phosphorous

Explanation:

Phosphorus and Nitrogen are similar in nature as they have 5 electrons in the outermost shell. Nitrogen and phosphorous belong to the same family on the periodic table.

As phosphorus lies just below nitrogen the characteristics of both the elements will be similar.

They are found abundant on earth and are cycle by biogeochemical cycle.

7 0
3 years ago
The frequency of a wave does not change as it passes from one medium to another.
stira [4]

Answer:

The speed of the light waves will decrease

3 0
2 years ago
What is the probability of the offspring having brown eyes (dominant) if the father has the "bb" genotype and the mother has the
nikdorinn [45]

Answer:

1 or 100%

Explanation:

Assuming that the allele B (brown) is dominant over the allele b, crossing the father and the mother:

          BB    x    bb

      Bb    Bb    Bb    Bb (you can also see the Punnet's square)

All the offspring would exhibit the dominant phenotype which is brown. Hence, the probability of the offspring having brown eyes is 100% or simply 1.

7 0
3 years ago
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