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3 years ago

Single-stranded regions of DNA are protected during replication by:_________.

Chemistry

1 answer:

fomenos3 years ago

6 0

Answer:

Explanation:

The single-stranded regions of DNA are protected during replication by single-stranded binding proteins.

The single-stranded binding proteins are a class of protein found in some living organisms. They bind to single-stranded regions of the DNA during the process of replication, recombination, or DNA repair and protect the DNA from being degraded by nuclease enzymes. In addition to protecting the single-stranded DNAs, they also hinder the single-stranded DNA from premature hardening during replication.

The correct option is b.

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What is the number of grams of an element that is numerically equal to the atomic mass in amu?

bagirrra123 [75]

The wording of your question doesn't quite make sense, but a mole of an element has the same mass in grams as a single atom of that element has in amu. The mole is defined as 6.02 x10^22 things, whether they be atoms or molecules or even moles! 6.02x10^22 atoms of carbon has a mass of 12.01 g, and a single atom of carbon has a mass of 12.01 amu. Hope this helps!

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3 years ago

Answer question 13. What is the mechanical advantage of a lever that can lift a 100 N load with a input force of 20 N

vazorg [7]

MA= output force/ input force
MA= 100N/20N
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3 years ago

Glucose (C6H12O6) can be fermented to yield ethanol (CH3CH2OH) and carbon dioxide (CO2). C6H12O6⟶2CH3CH2OH+2CO2 The molar mass o

jekas [21]

Answer:

The % yield is 74.45 %

Explanation:

Step 1: The balanced equation

C6H12O6⟶2CH3CH2OH+2CO2

Step 2: Data given

Molar mass glucose = 180.15 g/mol

Molar mass of ethanol = 46.08 g/mol

Molar mass of carbon dioxide = 44.01 g/mol

Mass of glucose = 61.5 grams

Mass of ethanol = 23.4 grams

Step 3: Calculate moles of glucose

Moles glucose = Mass glucose / Molar mass of glucose

Moles glucose = 61.5 grams / 180.15 g/mol

Moles glucose = 0.341 moles

Step 4: Calculate moles of ethanol

1 mole of glucose consumed, produces 2 moles of ethanol and 2 moles of CO2

0.341 moles of glucose, will produce 2*0.341 = 0.682 moles of ethanol

Step 5: Calculate mass of ethanol

Mass ethanol = moles ethanol * Molar mass ethanol

Mass ethanol = 0.682 moles * 46.08 g/mol

Mass ethanol = 31.43 grams = theoretical mass

Step 6: Calculate % yield

% yield = actual mass / theoretical mass

% yield = (23.4 grams / 31.43 grams) * 100%

% yield = 74.45 %

The % yield is 74.45 %

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4 years ago

4. A student was not sure that she accurately recorded the final temperature of her melting point sample. Therefore, she decided

Mumz [18]

Answer:

AWF DSF

Explanation:

W AFSDDDDDDDDD

3 0

3 years ago

Im to lazy to do this.

san4es73 [151]

D is correct answer

6 0

3 years ago