How does a genetic mutation occur?

Biology

2 answers:

ira [324]3 years ago

7 0

It occurs when the DNA sequence is messed up. There would b misreads in the ribosomes when they are copying DNA.

hoa [83]3 years ago

5 0

Answer:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.

Explanation:

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Which structure is highlighted? proximal convoluted tubule descending loop of Henle distal convoluted tubule ascending loop of H

SVETLANKA909090 [29]

Answer:

distal convoluted tubule

Explanation:

This is the region of the nephron downstream the macula densa ,which extends the to convulence of the collecting duct.Due to response to mineralocoticoid aldosterone they can be categorised as Distal Convoluted 1 and Distal convoluted 2. This steroid hormones is responsible for homeostatic control of hyperkalemia.

The DCT cells are simple cuboidal epithelium.The stained or pointed part of the image represented this possess this shape,they are therefore portion of DCT. Besides the stained cells are located above the glomerulus ()in the cortex as indicated,therefore they can not be the proximal which must be below the glomerulus, based on the shape ascending and descending loop of Henle (despite located in the cortex too).

The functions of the DCT is in the absorption and secretions of ions(majorly ca+,Na+ and chloride ions.By secreting hydrogen and reabsorbing HC03 ions ,the pH of the urine is maintained.

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In a mixture of sand and rock in gravel, different components are easily observed. Which term best describes this mixture?

Tema [17]

I wanna say it's sand stone but I'm not sure what you are learning about

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3 years ago

What is the difference between a vascular plant and a nonvascular plant?

velikii [3]

Answer:

Vascular plants are plants found on land that have lignified tissues for conducting water and minerals throughout the body of the plant. Non-vascular plants are plants mostly found in damp and moist areas and lack specialized vascular tissues.

Explanation:

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What is combustion and how does ir affect the carbon cycle?

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Combustion is the burning of a substance. It could be complete or could be incomplete. It changes the form of carbon and so it plays it's role in cycle

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Are there differences in the DNA in different types of human body cells

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