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3 years ago

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The plasma membrane is considered a barrier to the environment because __________. no molecules may pass through it it controls

the passage of molecules into the cell it is located outside of the cell wall only water and small molecules may penetrate the membrane

1 answer:

NARA [144]3 years ago

6 0

Because of active transport

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All of the following characteristics are used to classify living organisms EXCEPT –

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The once that can not move

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If the probability of having children with a straight hairline is 100%, what are the genotypes of the parents?

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You are comparing two samples of the octopus genome, one from an octopus that can make ink (sample 1), and one from an Octopus t

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Substitution Mutation

Explanation:

It can’t be deletion or addition as the base pairs of DNA haven’t shifted to the right or left.

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It can’t be an inversion, as that’s where the base pairs from the opposite DNA strands are inverted/switched.

If it was inversion, you would have had a C instead of an A for Sample 2.

This is due to complementary base pairing where guanine bind with cytosine and adenine binds with thymine.

Therefore, this only leaves substitution as a viable answer.

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3 years ago