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Sergeu [11.5K]
3 years ago
15

What is the central dogma of protein synthesis? ( put in order- protein, RNA, DNA)

Biology
1 answer:
Studentka2010 [4]3 years ago
5 0

Answer:

The central dogma is : DNA-RNA-protein

Explanation:

The central dogma of cell biology, enunciated by Francis Crick in 1958, proposes the transfer of genetic information from DNA to RNA (transcription) and then to proteins (translation).

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The following the DNA sequence is a small part of the coding (nontemplate) strand from the open reading frame of β-hemoglobin ge
sdas [7]

The reading frame of the sequence would shift, causing a change in the amino acid sequence after that point.

Explanation:

DNA sequencing is important to apply to the human genome. It allows scientists to sequence genes and genomes. Since there is a limit to how many bases can be sequenced in one experiment, larger DNA molecules - as mentioned - have to be 'broken' into smaller fragments before they can be sequenced and re assembled. The normal allelic variant is 1600 base pairs (bp) long and contains three exons. The order of the genes in the beta-globin cluster is 5' - epsilon – gamma-G – gamma-A – delta – beta - 3'.

7 0
3 years ago
A 0.2 M solution of NaCl contains ________ g of NaCl in 1 l of ________.
Maksim231197 [3]

Answer:

11.7 g in 1 L of water.

Explanation:

Molarity (M) or Molar concentration is a measure used in chemistry for solutes in a solution.

It is defined as mol/ L (number of moles per litre).

0,2 M means we have 0,2 mol/ L

In order to know how many grams this means we need to look up the molecular weight of the solute. In this case NaCl: 58.443 g/mol

\frac{1 mol NaCl}{58.443 g} = \frac{0.2 mol}{X g}

X= \frac{(0.2 mol x 58.433 g}{1 mol}

X= 11.69 g

The solution has 11.69 g of NaCl in 1 L of water since its an adequate polar solvent for NaCl dissolution.

8 0
3 years ago
Describe two examples of steroids and their physiological function.
Musya8 [376]
Testosterone is a steroid. Its physiological functions are:

Determines the the gender of a developing embryo

Development of reproductive organs and the prostrate gland in males

Responsible for secondary sexual characteristics in males such as deeper pitch, increased muscle bulk, hair on the upper lip

Regulates normal sperm development

Another is cholesterol. Physiological functions are:

Helps maintain the structure of cells and vessels improving overall health and function in the body.

Percursor to important sex hormones such as testosterone and estrogen.

Used as an insulator around nerves and is absolutely essential for brain function.

Precursor to Vitamin D, which supports a healthy immune and nervous system
6 0
3 years ago
The probability of a ___________ channel being open is controlled by the membrane potential.
Anna11 [10]

Answer:

(b) Voltage gated

Explanation:

The cell membrane acts as a barrier that separates two aqueous media of different composition, the extracellular and the intracellular, regulating its composition. Most of the liposoluble drugs and solutes, when not ionized, directly cross the cell membrane through a passive diffusion process, which facilitates the passage of the medium where it is more concentrated to the one that is more diluted. The difference in concentration between the two media is called the concentration gradient, and diffusion will continue until this gradient is eliminated. According to Fick's law, the speed of this process will be much faster the higher the concentration gradient and the liposolubility of the molecule and the smaller its size.

More hydrophilic molecules, such as ions, are immiscible in membrane lipids and pass through specific specific transport mechanisms. In some cases, ions pass through hydrophilic pores called ion channels, and in others a favor of their concentration gradient is transported by binding to the transporter or transporter proteins. Both transport systems are passive and therefore do not consume energy. The great advantage is that the ion channels allow the flow of ions through a much higher speed than that of any other biological system. The flow of ions through each channel can be measured as an electric current, which is capable of producing rapid changes in membrane potential.

8 0
3 years ago
Given that our model finch population is capable of rapid evolution in response to a changing environment, explain why you think
SIZIF [17.4K]

Darwin's finches are a traditional illustration of an adaptive radiation. Their ancestor came on the Galapagos Island about two million years ago. With time Darwin's finches have developed into fifteen different species separated on the basis of beak shape, body size, and feeding and song behavior.  

The population of finches possesses the tendency of evolving rapidly in response to a changing environment. However, they can also get extinct in condition if the weather fluctuates too briskly between the dry and wet seasons. This would most likely take place due to the immigration of genes and mutations within the genes that are conducted on to the next generations.  


7 0
3 years ago
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