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3 years ago

Which of the following checks DNA for errors?

Biology

2 answers:

marta [7]3 years ago

5 0

Answer: B. DNA polymerase

Explanation: DNA polymerase is an enzyme that catalyzes the addition of free nucleotides to the primer during replication. DNA polymerase also has a 3'->5' exonuclease activity which double-checks each nucleotide after it is added. The exonuclease activity of the DNA polymerase permits it to remove a newly added mismatched nucleotide. When the polymerase adds a wrong nucleotide, movement of the enzyme to the point where the next nucleotide will be added is halted, this 3'->5' exonuclease activity removes the mismatched nucleotide so that replication can continue.

Alchen [17]3 years ago

3 0

Answer:

Option B. DNA polymerase, is the correct answer.

Explanation:

DNA polymerase is a material which is responsible for checking errors in the DNA. Sometimes, errors occurs when the nucleotides is entered into the growing strand. When the error occurs, it can be corrected by DNA polymerase or another DNA containing enzyme. Sometimes, DNA is repaired and sometimes dealth occurs and removed from the body.

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Most of the worlds deserts are located at latitudes where

icang [17]

Most of the worlds deserts are located at latitudes where cold, dry air moving toward the poles descends.

E) cold, dry air moving toward the poles descends.

Explanation:

A large portion of the world's deserts are situated almost 30 degrees north scope and 30 degrees south scope, where the warmed tropical air starts to drop.

Hot deserts are essentially found around the Tropics of Cancer and Capricorn. As air moves inland, it gets drained of dampness and precipitation drops. So the majority of the world's deserts are situated at scopes where cool, dry air advancing toward the shafts slides.

4 0

3 years ago

name the molecular bond present in carbohydrates that enables change in colour when using Benedict's reagent test

Helen [10]

Answer:

copper.

Explanation:

Benedict's solution is simple carbohydrates are heated, the solution changes to orange red/ brick red. this reaction is caused by the reducing property of simple carbohydrates. the copper (II) ions in the Benedict's solution are reduced to Copper (I) ions, which causes the color change.

8 0

3 years ago

Which of the following processes takes place during prophase?

makkiz [27]

Answer:

It would be D. Mitotic spindles form

4 0

3 years ago

the salivary glands, stomach, and pancreas secrete ____________ enzymes to break down triglycerides into monoglycerides, fatty a

likoan [24]

The salivary glands, stomach, and pancreas secrete lipase enzymes to break down triglycerides into monoglycerides, fatty acids, and glycerol.

Lipases are a set of water-soluble enzymes that hydrolyze substrates such as triglycerides and phospholipids, have a similar structure and are essential in the metabolism of lipoproteins and lipids.

That is, the function of lipase enzymes is to hydrolyze triglycerides to generate diglycerides, monoglycerides, fatty acids and glycerol.

About lipase enzymes:

It acts on the neutral fats in the diet, splitting them into triglycerides or diglycerides and these to monoglyceride, which is the most easily absorbed fatty compound.

The action of lipase is much more manifest on triglyceride, and it is also much faster the higher the molecular weight of the fatty acid present.

It acts on the surface and in an aqueous medium, the emulsifying agent represented by bile salts is essential for optimum effectiveness.

They are widely distributed, with a presence in the animal and plant kingdoms and even in the simplest unicellular organisms.

Therefore, we can conclude that the salivary glands, stomach, and pancreas secrete lipase enzymes to break down triglycerides into monoglycerides, fatty acids, and glycerol.

Learn more here: brainly.com/question/15737562

8 0

3 years ago

Describe the basic parts and functions of the circulatory system

Alex Ar [27]

blood, lungs and blood vessels that make up the circulatory system. ... The network of veins, arteries and blood vessels transports oxygenated blood from the heart, delivers oxygen and nutrients to the body's cells and then returns deoxygenated blood back to the heart

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3 years ago