What's an advantage of using a light microscope instead of an electron microscope

1 answer:

8 0

While light microscopy magnifies objects up to 2000x (two-thousand times), electron microscopy is a much higher resolution study of microscopic objects, magnifying objects up to 10,000x. However, light microscopes do offer some advantages over electron microscopes:

1.Ease of use in a laboratory

2.The ability to keep specimens alive for extended periods

3.Colors images - Images can be rendered in a variety of colors in light microscopy,

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Why does each parent contribute only one allele to the offspring?

Natasha2012 [34]

Answer:

Because the gametes implemented in fertilisation are haploid in nature, in the case of humans, mature gametes contain 23 chromosomes instead of 46 which will then combine with another parents' 23 chromosomes during fertilisation, i.e: 23 (dad) + 23 (mom) = 46 (zygote)

Explanation:

A regular somatic cell has 46 chromosomes, 2n, 2 alleles but the gametes have 23 chromomes, n, 1 allele. The usual significance of this is so that there is diversity in the offspring and the offspring can gain characteristics (bad or good) from both parents.

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Which of the following does NOT affect the flow of groundwater through an aquifer ? a. porosity C. gradient b . chemical weather

creativ13 [48]

Answer:

b . chemical weathering

Explanation:

Chemical weathering is not affected the flow of groundwater through an aquifer but affect by the porosity and permeability. The rate of groundwater flow is controlled by two properties of the rock which are porosity and permeability. Porosity is the percentage of void space in a rock while on the other hand, Permeability is the quality of being permeable means able to be penetrated or passed through by a liquid or gas.

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2 years ago

Which is one factor of rock types that affects the rate of weathering?

Fynjy0 [20]

Answer:

Explanation:

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2 years ago

Read 2 more answers

If a cell were treated with poison to block to function of its michocondria which of the following would be likely result?

blagie [28]

The pH of the matrix increases and the pH of the inter membrane cell decreases

The reason behind this is the presence of the electron transport chain within the mitochondria which requires the transport of hydrogen ions. The movement of hydrogen ions results in varying pH. If the mitochondria dies, the hydrogen ions will not move into the matrix, causing its pH to increase, and they will build up in the inter membrane causing a decrease in pH.

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2 years ago

If you have a hamster with long fur, what possible genotypes could the hamster have?

Vadim26 [7]

Answer:

Ll, Ll, LL

Explanation:

So, there is one thing we must remember to answer this:

1# dominant genes(long fur) are expressed over reccesive genes(short fur)

Knownign that dominant is over reccesive, it is simple. If the genotype was Ll or lL then the dominant long fur would be expressed over reccesive short fur. Long fur - Ll, lL

Next, we know that LL will be long fur since its both long and long, and there is no possibility for short fur. Long fur - LL

Finally. we have ll, and since there isnt a dominant long fur, and only reccesvie short, then this cannot be long fur. Short fur. - ll

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2 years ago