If a dna analysis reveals that a cell has 60 ng of adenine and 20 ng of cytosine, how much thymine and guanine are in the cell? defend your answer.

Answers

Answer 1
Answer:

Answer:

Thymine= 60 ng

Guanine= 20 ng

The complementary base pairing occurs between adenine and thymine and guanine and cytosine bases.

Explanation:

According to the Chargaff rule, a double-helical DNA molecule has an equal number or equal amount of adenine and thymine bases since adenine always pairs with thymine. Similarly, the amount of guanine base is equal to that of the cytosine base.

Chargaff rule is based on the complementary base pairing between purine and pyrimidine bases. According to the given information, the amount of adenine is 60 ng. Therefore, the cell would have 60 ng thymine. Similarly, the amount of the cytosine base in the cell is 20 ng which means that the cell would have 20 ng of guanine base.

Answer 2
Answer:

Final answer:

According to Chargaff's rules, the amount of adenine is equal to the amount of thymine, and the amount of cytosine is equal to the amount of guanine in a DNA molecule. Thus, the cell should have 60 ng of thymine and 20 ng of guanine.

Explanation:

The question refers to the base pairing rules in DNA, which were discovered by Erwin Chargaff and are now known as Chargaff's rules. According to these rules, the amount of adenine (A) in DNA is always equal to the amount of thymine (T), and the amount of cytosine (C) is always equal to the amount of guanine (G).

In this case, if the DNA analysis reveals that the cell has 60 ng of adenine, the cell should also contain 60 ng of thymine according to Chargaff's rules, since A = T. Similarly, if the cell contains 20 ng of cytosine, there should be 20 ng of guanine as well, because C = G.

So, based on the base pairing rules in DNA, the cell should have 60 ng of thymine and 20 ng of guanine.

Learn more about Chargaff's rules here:

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Auxins _____. promote cell elongation and cell division in stems stimulates seed growth and fruit development promotes cell division regulates the opening and closing of stomata

Answers

Auxins promote cell elongation and cell division in stems. 

The correct answer is option A

Auxin promotes cell elongation and cell division in stems. They promote stem elongation and inhibits the growth of lateral buds.

This plant hormone is produced in the stem tip and then it travels to the darker side of the plant so that the cells in the darker side grows more than the cells in the lighter side of the plant.

Which of the following cannot be determined from the spectrum of a star? the chemicals in the atmosphere of the star the motion of the star the temperature of the atmosphere of the star the chemicals in the core of the star

Answers

 think its the chemicals in the core of the star im think im 89.99% sure

Answer:

the chemicals in the core of the star

Explanation:

i got it right in my quiz

How many atoms of nitrogen are in a chemical formula Ni(NO3)2?O 3
O 2
O 1
O 6

Answers

The answer is 2 because its the outside number and not in the parentheses

Answer:

2

just did test

Explanation:

Based on the endosymbiotic theory, what cell would result from the endosymbiosis of a cell with a cyanobacterium?

Answers

The answer is a eukaryotic cell.
According to endosymbiotic theory, the result from the endosymbiosis of a cell with a cyanbacterium is a eukaryotic cell that can produce its own food. Eukaryote refers to the organisms whose cells have a nucleus and other organelles are enclosed within membranes.

Gene S controls the sharpness of spines in a type of cactus. Cactuses with the dominant allele, S, have sharp spines, whereas homozygous recessive ss cactuses have dull spines. At the same time, a second gene, N, determines whether or not cactuses have spines. Homozygous recessive nn cactuses have no spines at all. If doubly heterozygous SsNn cactuses were allowed to self-pollinate, the F2 would segregate in which of the following ratios?
A) 3 sharp-spined:1 spineless
B) 1 sharp-spined:2 dull-spined:1 spineless
C) 1 sharp-spined:1 dull-spined:1 spineless
D) 1 sharp-spined:1 dull-spined
E) 9 sharp-spined:3 dull-spined:4 spineless

Answers

The answer is E) 9 sharp-spined:3 dull-spined:4 spineless.

It is known that the in 
dihybrid cross (a cross between two different traits), the phenotypic ratio between the offspring in the F2 generation is 9:3:3:1:
9 - individuals with both dominant traits (SSNN),
3 - individuals with the first dominant trait and the second recessive trait (SSnn),
3 - 
individuals with the first recessive trait and the first recessive trait (ssNN),
1 - individual with both recessive traits (ssnn).

According to this, there will be 9 sharp-spined cactuses (SSNN), 3 dull-spined cactuses (ssNN), and 4 spineless cactuses (3 cactuses with SSnn genotype and 1 cactus with ssnn genotype).


The downfall of a tragic character is the result of __________.chance
a tragic flaw
the antagonist
poverty

Answers

The downfall of a tragic character is the result of "a tragic flaw".


The term hero is gotten from a Greek word that implies a man who faces affliction, or shows strength, despite risk. Nonetheless, at times he faces ruin too. At the point when a hero goes up against destruction, he is perceived as a tragic hero. Aristotle, the Greek philosopher, portrays these plays or stories, in which the principle character is a shocking saint, as disasters. Here, the hero goes up against his ruin whether because of destiny, or by his own oversight, or some other social reason.  

Hamartia refers to a tragic flaw that causes the downfall of a hero.

Answer:

Option B

Explanation:

In almost all the literature forms specially in greek literature, a hero has always been a person who has rises against all the odds in his/her life. This special character faces affliction and usually shows strength instead of the risk involved in it. Some time this character undergoes complete down fall or he/she get ruined but this "hero" rise up again and stand strongly  against the destruction and thus is perceived as a tragic hero. Aristotle, has always portrayed in his writing "hero" as the main character who get ruined because of destiny or some social reason

Hence, option B is correct