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Afina-wow [57]
3 years ago
6

Are most mutations harmful, helpful, or neutral!?

Biology
1 answer:
Doss [256]3 years ago
5 0

Answer:

A single mutation can have a large effect, but in many cases, evolutionary change is based on the accumulation of many mutations with small effects. Mutational effects can be beneficial, harmful, or neutral, depending on their context or location. Most non-neutral mutations are deleterious.

idk i hope this helps enough

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A scientist studying the effects of radiation on DNA performs an experiment in which she exposes a sequence of nitrogen bases fo
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Answer:

D. A nitrogen base has been added to the DNA molecule.  

Explanation:

You can see that the sequence for the nitrogen bases are in the exact same order after the exposure, this rules out A.  You can count how many bases there are, 7 before and 8 after so it cannot be B. Lastly, given that they are in the same order as were before and that a base has been added, you can see that no bases were replaced (so not C) and that D is your answer.  

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The neural pathway represents the nerves that connect the sense organs to the brain what happens along the neural pathway when t
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The visual cortex in the brain processes the signals to create the perception of vision.

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Hope this helps.

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With examples, discuss the role of sensory memory on long term recall
igor_vitrenko [27]

Explanation:

How Does Sensory Memory Work?

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Experts also believe that different senses have different types of sensory memory. The different types of sensory memory have also been shown to have slightly different durations.

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Echoic memory, also known as auditory sensory memory, involves a very brief memory of sound a bit like an echo. This type of sensory memory can last for up to three to four seconds.

Haptic memory, also known as tactile memory, involves the very brief memory of a touch. This type of sensory memory lasts for approximately two seconds.

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