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Effectus [21]
3 years ago
7

Which of the following statements about DNA are true?

Biology
1 answer:
Setler [38]3 years ago
7 0

Answer:D

Explanation:

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To see how many atoms are in the chemical formula or element symbol, look at the subscript.
KengaRu [80]

Explanation:

To find the number of atoms in each specie, we consider the coefficient and the subscript of each of the given atoms.

1. NaCl:

Na  = 1 atom

Cl = 1 atom

2. CO₂

C = 1 atom

O = 2 atom

3. O₂

O = 2 atoms

4. C₆H₁₂O₆

C = 6 atoms

H = 12 atoms

O = 6 atoms  

For the second part;

1. 2NaCl

Na = 2 atoms

Cl = 2 atoms

2. 3CO₂

C = 3 atoms

O = 6 atoms

3. 4O₂

O = 8 atoms

4. 2C₆H₁₂O₆

C = 12 atoms

H = 24 atoms

O = 12 atoms

6 0
3 years ago
Pyruvate is a direct precursor of anapleurotic reactions which produce which intermediates of the tca cycle?
Virty [35]

The correct answer is:  oxaloacetate

Anaplerotic reactions are chemical reactions that form intermediates that can be used in the further steps of metabolic pathways. These reactions are very important, because it is crucial for the cell to regulate concentrations of TCA cycle metabolites and intermediates.

The reaction in which pyruvate is converted to oxaloacetate is catalyzed by pyruvate carboxylase and it occurs in mitochondria. Also, pyruvate can be converted to L-malate, in a similar way.

7 0
3 years ago
Aim on how does the dominant hand and non-dominant hand react to stimulus
Sergeu [11.5K]
The dominant hand will most probably be faster to react and will also react more strongly in comparison to the non-dominant hand. The reason for this is that our dominant hand tends to be better at reacting towards stimuli in comparison to our non-dominant hand. 
7 0
3 years ago
What is one part of a nucleotide that differs among the 4 different nucleotide
kykrilka [37]
Irk look it up on the computer
6 0
3 years ago
3. Nowadays many people are using sunscreen lotions as per doctor's advice to protect
evablogger [386]

Answer:

Ozone layer... pollution

Explanation:

The ozone layer is a layer in the atmosphere which provides a barrier between harmful UV rays and the Earth. However, pollution is quickly depleting the layer which in turn creates a higher risk of skin cancers and other conditions caused by harmful UV rays.

7 0
3 years ago
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