Answers
Answer: e. 2.5 ml
Explanation:
According to the dilution law,
where,
= concentration of stock solution = 20X
= volume of stock solution = ?
= concentration of required solution= 1X
= volume of required solution= 50 ml
Thus 2.5 ml much of a 20X tricaine stock solution is needed to dilute in order to make your solution.
Related Questions
Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. Single-celled organisms may use cell division as their method of reproduction. Regardless of the reason for mitosis, the process ensures genetic continuity. Consider the model of the cell cycle. Which detail(s) from the model best support the argument that cell division promotes genetic continuity?
What does it mean that a human being is a bio-psycho-social being?
____ dating can be used to determine the age of something from of years ago
Write ten ways by which water bodies are polluted
Answers
Answer:
b. in vessel elements only, after turgor loss point through air-seeding across pit membranes
Explanation:
As in humans, embolism can happen in plants. In the case of plants, embolism occurs only in the elements of the vessel, after the point of loss of the turgor through the propagation of air through the membranes of the pits, in other words, the embolism occurs when there is air filling the empty spaces of the xylem (element of vase), creating air bubbles.
These air bubbles block the xylem's work in transporting water from the root to the other parts of the plants, that is, it reduces the plant's ability to absorb water from the soil, thus preventing the plant from carrying out not only photosynthesis, but numerous metabolic processes essential for your body to survive.
James Baldwin
Which detail from the passage creates the most suspense for the reader?
“Minos, king of Crete, had made war upon Athens.”
“He had laid waste the fields and gardens round about Athens.”
“Then Aegeus, the king of Athens . . . went out to see King Minos and to treat with him.”
Answers
It is likely that the detail that creates the most suspense for the reader is "He [Minos] king of Crete, had made war upon Athens.”
What was the confrontation between Minos and Athenian ruler?
It is likely that the detail that creates the most suspense for the reader is "He [Minos] had sent word to the Athenian rulers that on the morrow he would march into their city with fire and sword and would slay all their young men and would pull down all their houses, even to the Temple of Athena, which stood on the great hill above the town."
This detail implies that the confrontation between Minos and the Athenian rulers will be violent and destructive, and the reader may be left wondering what will happen as a result. Additionally, the fact that Minos has already laid waste to the surrounding area and burned the merchant vessels in the harbor suggests that he is a formidable and potentially dangerous opponent, further increasing the suspense for the reader.
Learn more about Athenia rule, here:
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Answer:
“Then Aegeus, the king of Athens . . . went out to see King Minos and to treat with him.”
Explanation:
just took the test
b. insertion mutations can only be silent mutations.
c. insertion mutations can affect many amino acids in the protein.
d. insertion mutations are chromosomal mutations?
Answers
The study of cells is called cell biology. There are two types of a cell on the basis of their number and these are unicellular and multicellular.
The correct answer to the question is option C that is insertion mutations can affect many amino acids in the protein.
What is transcription?
- The conversation or transferring of the gene from DNA to RNA is called transcription.
What is mutation?
- The abnormality in the gene in the DNA sequence which forms a mutated protein is called a mutation.
The formation of protein is called translation. This addition of genes changes the sequence of RNA which alters the protein formation while in point mutation it changes only one amino acid.
Hence, the correct answer is option C.
For more information about the transcription, refer to the link:-
Answers
Answer:
Explanation:
The disease sickle cell anemia is caused by homozygosity for a mutation:
- SS or Ss genotypes: normal
- ss: anemia
Albinism is a recessive trait:
- AA or Aa: normal
- aa: albinism
The genes S/s and A/a are linked and separated by 1 map unit.
Remember that 1 mu means that 1% of the gametes produced by an individual will be recombinant.
a) Albino man (Sa/Sa) X woman with sickle-cell anemia (sA/sA)
Son: Sa/sA
The gametes he can produce are:
- Parentals: Sa and sA
- Recombinant: SA and sa
Since the frequency of recombination is 1% (or 0.01), each recombinant gamete has a frequency of 0.005 (since there are two possible recombinant gametes).
The parental gametes will appear with a frequency of 0.99, each of them with a frequenct of 0.495.
b) Normal man (SA/SA) X woman with anemia and albinism (sa/sa)
Daughter: SA/sa
The gametes she can produce are:
- Parentals: SA (0.495) and sa (0.495)
- Recombinant: Sa (0.005) and sA (0.005)
c) Son (Sa/sA) X daughter (SA/sa)
In order for them to have an albino child with anemia (sa/sa), the gamete sa from each parent had to be produced and fused into the zygote. Since the production of gametes by each parent is an independent event, the probability of having sa/sa offspring can be calculated as:
Prob. sa gamete son × Prob. sa gamete daughter = 0.005 × 0.495 = 0.0025
The probability that a child of theirs will be an albino with sickle-cell anemia is 0.25%
Answers
Whenever POPs move thousands of kilometers from their source of release throughout a cycle is described as a "Grasshopper effect".
- Global distillation occurs when prevailing ocean as well as atmospheric currents transport toxins towards the Arctic, where they have been confined by the freezing environment.
- This would be known also as the "grasshopper effect," since chemicals constantly evaporate as well as condense during their way towards the Arctic.
Thus the response above i.e., "Option b" is right.
Learn more about the grasshopper effect here:
Answer:
b. grasshopper effect
Explanation:
Persistent Organic Pollutants or POPs are organic chemicals that cause a lot of damage to environment and living beings. They are generally industrial chemicals or pesticides for example, DDT. They are toxic and not degraded easily. They tend to get accumulated in living tissues and increase in concentration as we move upwards in a food chain.
When POPs are transported to areas far from their original site, the phenomena is called as grasshopper effect. They are carried by wind in atmosphere and finally settle down on land from where they evaporate again to enter the atmosphere. Thus, the cycle continues. Eventually, they can reach to an area thousands of kilometers away from their original source.
Answers
There are many, and since you didn't specify the choices, some examples include "ff" or "dd" or just two lowercase letters.
Explanation: