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KIM [24]
3 years ago
6

The formation of pyrimidine dimers results from which of the following?

Biology
1 answer:
umka2103 [35]3 years ago
5 0

Answer:

exposure to ultraviolet radiation is a correct answer.

Explanation:

Ultraviolet light exposure results in the formation of pyrimidine dimers. Ultraviolet radiation damage the DNA by resulting in chemical changes.

Ultraviolet radiation is absorbed by the pyrimidine bases( cytosine and thymine in DNA) and result in the formation of covalent bonds between the succeeding bases.

The formation of the pyrimidine dimers results in the distortions of DNA helix and disrupt the base-pairing during the replication of DNA which results in a mutation.

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The plant has the genotype ssyy. (Uncapitalized because they are recessive genes, not dominant.)

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3 years ago
What is an acid?<br> What is the ph level of an acid?
Stels [109]

Answer:

• An acid is an electrolyte that hydrolyses in water to release hydrogen ions.

{ \rm{HA _{(aq)} \:  \:  {}^{ \dashrightarrow} _{ \dashleftarrow} \:  \:  H {}^{ + } _{(aq)} +A {}^{ - }  _{(aq)}}} \\

• pH level of an acid;

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2 years ago
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3 0
3 years ago
Some of the food in the protein group and dairy group are high in saturated fats and cholesterol. These raise which cholesterol
BigorU [14]

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<h3>What is cholesterol?</h3>

Cholesterol is a waxy like substance synthesized from two sources such as liver and from animals like meat, poultry, diary product.

There are two types of cholesterol, one is bad called LDL cholesterol and second one is good called as HDL.

LDL narrow down the arteries by depositing fats in it, the condition known as atherosclerosis which leads to increase in risk for heart attack, stroke and peripheral artery disease.

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Third component called triglycerides are the common type of fat act as a reservoir of excess energy.

Hence, LDL is the correct answer.

Learn more about cholesterol, here:

brainly.com/question/14528218

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3 0
2 years ago
An ecosystem has 150 organisms of 15 different species. What is the biodiversity index of this ecosystem?
iren2701 [21]

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In this example, there are 15 species in an area and we divide that by 150 organisms to get a 0.1 biodiversity index.

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3 years ago
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