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2 years ago

Describe qualitatively how the tm for a double-stranded dna depends on its nucleotide composition

1 answer:

4 0

I think the higher the proportion of Guanine and cytosine; then the higher the melting temperature,tm. This is because there are three hydrogen bonds between the bases pairing between G and C, thus more thermal energy will be required to break the three hydrogen bonds holding G and C pairs, as compared to the breaking the two hydrogen bonds bonds holding A=T pairs.

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Cassandra made a Venn diagram to compare and contrast the two stages of cellular respiration. Which belongs in the area marked X

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Answer:

D. Carbon dioxide is used up.

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2 years ago

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A slice of pizza has 500 kcal. If we could burn the pizza anduse all the heat to warm a 50-L container of cold water, what would

kap26 [50]

Answer:

c. 10°C

Explanation:

Given that: A slice of pizza has 500 kcal.

That is to say Q = 500kcal

If the pizza was burned and all the heat were used to warm a 50-L container of cold water,

what would be the approximate increase in the temperature of the water?

We were also being told to note that; A liter of cold water weighs about 1 kg.

i.e 50-L container weighs about 50kg (mass)

∴ Since;

Q= 500kcal,

m = 50kg; &

the specific heact (c) = 1

we can find the approximate increase in the temperature of the water by using the formula:

Q = mcΔT

ΔT = $\frac{Q}{mc}$

ΔT = $\frac{500}{50*1}$

ΔT = 10°C

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2 years ago

Ilia_Sergeevich [38]

Both human and bacteria cells contain DNA and both have a outer membrane that controls how materials come into and leave the cell.

Predominantly multicellular not in bacteria but in human body

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* Ribosomes size in bacteria 70s and in human body 80s

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2 years ago

Damage to which structure will most directly disrupt water balance within a single-celled organism

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Answer:

Explanation: Mitochondrion

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1 year ago

What are The categories of epithelial tissues membrane are

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