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Verdich [7]
3 years ago
9

How big is the Circumfance of earth

Biology
1 answer:
Simora [160]3 years ago
7 0
It is 24,901 mi. p.s u can also look it up on Google
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Dna never migrates from the nucleus to the cytoplasm to participate directly in protein synthesis. True or false
NeTakaya

Answer: true

Explanation:

Only the mRNA made from the DNA takes part in the protein synthesis

5 0
3 years ago
Turgor pressure is the pressure exerted on a plant cell wall by water. When wilted plants are placed in water, they demonstrate
Rus_ich [418]

Answer: When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.

Explanation:

Turgor is a phenomenon in plant cells in which the cell expands due to the pressure exerted by the fluids and also by the cell content on the walls. It is related to osmosis, since the external pressure is usually very high and this internal pressure dilates the cell as much as the elasticity of the membranes allows. <u>Then, the cells swell by absorbing water, tensing the membranes because of the pressure against them.</u> When the fluid exerts outward pressure on the cell wall it is called turgor pressure.  Whereas, the inward pressure exerted on the cell contents by the stretched cell wall is called wall pressure. Generally, both pressures, turgor pressure and wall pressure, are counterbalanced and balanced.

So, this pressure of turgor facilitates the elongation of the cells in the plant, and also, the cells use this phenomenon to regulate the transpiration through the opening and closing of the stomach.

Thereby, the turgor of a living cell is influenced by three primary factors:

  • An adequate supply of water.
  • The formation of osmotically substances.
  • A semi-permeable membrane.

Vacuoles are organelles bounded by a single membrane and present in plant and fungal cells, and where water is stored. Plant cells control their turgor pressure through the movement of water into or out of vacuoles. When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.

3 0
3 years ago
Suppose that in a population of 250,000 mice the mutation rate per base pair for a genetic locus is 4 × 10–8. the locus contains
Zielflug [23.3K]

Answer:

d

Explanation:

6 0
3 years ago
Which reaction produces monosaccharides?
Alona [7]

The photosynthesis reaction(s) (by green plants in sunlight)

6 C02 + 6 H20 =>C6H1206 + 6 02

5 0
2 years ago
Read 2 more answers
An important technique that helps provide insight into interesting genetic questions at the molecular level, such as reasons for
malfutka [58]

Answer:

DNA sequencing

Explanation:

DNA sequencing is a technique which helps in determining the DNA sequence of any organism. In the human genome project, all the bases that make DNA in humans are sequenced which helped doctors to determine the cause of many genetic diseases and also their treatment.

Hairlessness in dogs can be genetic and the mutated gene can be determined by sequencing the DNA of hairless dog and comparing it with the normal DNA sequence of dog. Therefore the correct answer is DNA sequencing.  

8 0
3 years ago
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