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lapo4ka [179]
11 months ago
5

How are the line spectra of the different elements related to the observed color with the unaided eye?

Biology
1 answer:
Elza [17]11 months ago
3 0

Line spectra of different elements vary due to difference in wavelengths of emitted light.

To the unaided eye, the various wavelengths denoting colors of light given  by an element are combined together, and appear as a single color that is a combination of the constituent colors.

Electrons in atoms usually occupy the lowest energy states possible (ground state). However, electrons can be excited to high energy states when they absorb excess energy.

When they return to the ground state, they release this excess energy in the form of light. Each atom or molecule releases a single photon of light for each electron energy transition it makes.

To learn more about Line spectra here

brainly.com/question/13599564

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What protein is responsible for the initial step in unwinding the DNA helix during replication of the bacterial chromosome?
maw [93]

Answer:

Proteins play a fundamental role for life and are the most versatile and diverse biomolecules. They are essential for the growth of the organism and perform a huge amount of different functions.

The passage of DNA to proteins begins with the step of transforming genetic information into an intermediary between DNA and protein. This intermediary is called messenger RNA (mRNA). The difference between DNA and mRNA is that the second corresponds to a very small fraction of all DNA, consists of a single chain (it is no longer a “zipper” but a strand), and that Thymine (T) is replaced by the Uracil (U). This fraction corresponds to the stretch of DNA that contains the sequence necessary to ultimately synthesize the protein.

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3 years ago
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What cell organelle stores water for plant cells
dimaraw [331]
Vacuoles store water in plants
4 0
3 years ago
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A solution of an enzyme normally found in the human body was added to a flask containing a solution of proteins in distilled wat
Nata [24]

Answer: 1. increase the temperature from 27 degrees Celsius to 37 degrees Celsius

Explanation:

Generally, protease function optimally at temperature range of 55 to 60 degrees Celsius and at lower pH 5.0 to 5.5. Hence increase in temperature to 37 degrees Celsius will increase proteolysis.

3 0
3 years ago
In fruit flies, curved wings (w) are recessive to the dominant straight wings (W), and ebony body (b) is recessive to the domina
lara [203]

Answer:

The correct answer =

parents : WwBb x wwbb

offspring :

WwBb, Wwbb, wwBb, and wwbb

Explanation:

It is given that the straight wings (W) is dominant over curved wings (w) and the ebony body (b) is recessive to the dominant gray body (B) and there is a cross between curved wings and ebony body and straight wings and gray body is made. The phenotypic ratio is: 1:1:1:1 for the four different phenotypes straight gray, straight ebony, curved gray, curved ebony.

It is not given the genotype of parents, however, for the curved and ebony fly, it is clear that both alleles are recessive as recessive alleles only appear in absence of the dominant allele of the trait.

For another parent, the possible genotypes can be  WWBB or WwBb, however in the case of WWBB the phenotypic ratio would not be equal therefore,

crossing WwBb x wwbb

This can be represented in the form of a punnett square as below:

          wb   wb           wb           wb  

WB WwBb WwBb WwBb WwBb Straight wing, Gray body

Wb Wwbb Wwbb Wwbb Wwbb Straight wing, Ebony body

wB wwBb wwBb wwBb wwBb Curved wing, Gray body

wb wwbb wwbb wwbb wwbb Curved wing, Ebony Body

The phenotypic ratio is: 1:1:1:1 for the four different phenotypes

4 0
2 years ago
A scientist compared the genes and proteins from a root cell and a leaf cell of a single apple tree. What will the scientist obs
Arada [10]

Options:

a) They have different sets of genes but the same set of proteins. (b) They have different sets of genes and different sets of proteins. (c) They have the same set of genes and the same set of proteins. (d) They have the same set of genes but different sets of proteins.

Answer:

d) They have the same set of genes but different sets of proteins

Explanation: Auxins are found in leaves cytokines are found in root tips and shoot tissues.

8 0
3 years ago
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