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german
3 years ago
7

What are the scientific explanations of the origin of DNA?

Biology
1 answer:
marishachu [46]3 years ago
7 0

All cellular organisms have double-stranded DNA genomes. The origin of DNA and DNA replication mechanisms is thus a critical question for our understanding of early life evolution. For some time, it was believed by some molecular biologist that life originated with the appearance of the first DNA molecule!

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Please help ASAP this needs to be turned in at 4:30 pm
dangina [55]

Answer:

Explanation:

1.A.

2.C.

3. D

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8 0
3 years ago
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Neuroglia do all of the following except:______. a. transmit electrical impulses. b. regulate interstitial fluid composition. c.
Ivenika [448]

Answer:

Option A, transmit electrical impulses

Explanation:

Neuroglia also known as glial cells which act as supporting cells for the nervous system and its functioning. These cells surrounds the neurons and produce insulation between them as they produce myelin sheath that coats the axon. There are six types of neuroglia cells and they all work to provide essential nutrients to the neuron cell and also maintain the homeostasis (under which it also regulate the interstitial fluid composition and repair tissue framework)

Hence option A is correct

8 0
3 years ago
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In humans, straight hair can be represented as ss and curly hair as ss. hair texture exhibits incomplete dominance. a man with c
professor190 [17]
50 percent chance of curly hair
4 0
3 years ago
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A plant can produce either purple flowers or white flowers. What is the probability of purple-flowered offspring if two plants t
pickupchik [31]

Answer:

it should be 4:4

Explanation:

The p will stand for purple and the w will stand for white.

it would go like     P    |    P

                       W | PW | PW

                       W | PW | PW

8 0
3 years ago
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Which far-field imaging methods can extend the diffraction limited resolution to a smaller value?
topjm [15]

Answer:

Deterministic super-resolution: The most commonly used emitters in biological microscopy, fluorophores, show a nonlinear response to excitation, and this nonlinear response can be exploited to enhance resolution, such as STED, GSD, RESOLFT and SSIM.

Stochastic super-resolution: The chemical complexity of many molecular light sources gives them a complex temporal behavior, which can be used to make several close-by fluorophores emit light at separate times and thereby become resolvable in time, such as Super-resolution optical fluctuation imaging (SOFI) and all single-molecule localization methods (SMLM) such as SPDM, SPDMphymod, PALM, FPALM, STORM and dSTORM.

Explanation:

https://www.creative-biostructure.com/Super-resolution-Microscopy-Service-590.htm

6 0
3 years ago
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