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mrs_skeptik [129]
2 years ago
8

Why names light microscope and electron microscopes

Biology
1 answer:
yarga [219]2 years ago
6 0

Answer:

In contrast to light microscopes, electron microscopes use a beam of electrons instead of a beam of light. Not only does this allow for higher magnification and, thus, more detail, it also provides higher resolving power.

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Explain the roles of mrna and trna in protein synthesis.
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Answer:

mRNA is transcribed from DNA.

The nucleotides in mRNA code for amino acids.

tRNA translates the mRNA sequence into an amino acid sequence so proteins can be made.

Explanation: FOR REAL THE FACTS

6 0
3 years ago
Read 2 more answers
Populations of the grasshopper Vandiemenella viatica possess different chromosomal fusions and inversions. Grasshoppers that are
svetlana [45]

Answer:

The options

a. New combinations of genes yielding genotypes of greater fitness

b. Few heterozygotes because of underdominance

c. Frequency-dependent selection, leading to fluctuations in fitness

d. Heterozygotes with greater fitness, owing to overdominance

e. A random assortment of genotypes because of genetic drift

The CORRECT ANSWER IS b.

b. Few heterozygotes because of under dominance

Explanation:

In genetics, underdominance (at times called "negative overdominance") is the opposite of overdominance.

It is the selection against the heterozygote, that leads to disruptive selection and divergent genotypes. It occurs in cases of inferior and reduced fitness (As in our case study, it is the different chromosomal fusions and inversions)

of the heterozygotic genotype to the dominant or recessive homozygotic genotype. It is unstable as it causes fixation of either allele.

Another example is the African butterfly species Pseudacraea eurytus, which makes use of Batesian mimicry to avoid predation. This species carries two alleles that gives a coloration that is alike to a different local butterfly species that is harmful to its predator. The butterflies who are heterozygous for this trait are observed to be intermediate in coloration and thus encounter an higher risk of predation and a decrease in the total fitness.

3 0
2 years ago
ur data for diffusion of water across a differentially permeable membrane in response to a sucrose gradient could be graphed wit
musickatia [10]
The slopes show that sucrose gradient affects change in weight.

The slopes will be different because higher gradient concentration of sucrose will result in the higher amount of water moved. This means the higher sucrose gradient concentration, the more change in weight of the water. 
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What are microwaves are used for?
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A. for cooking food and transmitters
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What normally happens when the blood glucose level fall?
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Answer:

nothing happen only man die

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