The cell cycle is regulated at the molecular level by a set of protein known as CYCLIN . Cyclin are a core regulator of the cell cycle. They are group of related proteins and four different types have been identified in humans. Each cyclin is associated with a particular phase of the cell cycle.
<h3>Question from alternative source</h3>
Many different types of mutations can occur within the body. Cystic fibrosis is a genetic disorder that is caused by different mutations within the CFTR gene. One mutation in the CFTR gene that leads to cystic fibrosis causes translation to end earlier in the gene sequence. Which type of mutation causes this translation error that leads to cystic fibrosis?
- silent
- missense
- nonsense
- deletion
Answer:
Nonsense
Explanation:
Nonsense mutations describe mutations that produce a premature stop codon. The stop codons are UAG, UAA, and UGA. A way in which this could arise is, for example, if there was a substution of a nucleotide in the mRNA codon UAC (which codes for the amino acid Tyrosine) to the nucleotide UAG (which codes for a stop codon).
The translation machinery would reach this codon, which signals that translation should be terminated. This would mean that the mRNA would be released, and a truncated (shortened) version of the amino acid would be produced. This is likely to be non-functional, and may even be marked for destruction by the cell.
The rotation of the earth
The Coriolis Effect is caused by Earth’s uneven distribution of heat AND the rotation of the earth
Explanation:
Due to the spherical nature of the earth, when it spins, around its axis, different latitudes spin at different rates. The nearer to the pole you get the slower the earth’s spins (approx 0.00008 kilometers/hr), while this spin is fastest at the equator ( approx1,600 kilometers/hr). Due to this differential spin, ocean and winds currents (while they move polewards due to convection) are deflected as they move towards the pole from the equator. Towards the North, they are deflected westwards while towards the South they are deflected eastwards.
Learn More:
For more on Coriolis effect check out;
brainly.com/question/939168
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Answer:
all functions
Explanation:
To survive, unicellular cells must carry out all functions.
Hope this helps!
Answer:
The diameter of the xylem vessels should be small in order for the capillary action to take place.
Explanation:
The vessels through which water is transported to different parts of the plants and trees are the xylem. Water is transported in the trees through a mechanism named as capillary action. This mechanism can occur only if the diameter of the vessels are small.
The water molecules adhere to the walls of xylem and an upward force is generated. If the diameter of the vessels i.e xylem would be small then the surface tension between the xylem and water molecules would be enough to move the water in an upward direction.
