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iragen [17]
3 years ago
14

Which planet is most like Earth in size and density? A: Mercury B: Venus C: Neptune

Biology
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

B. Venus

Explanation:

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Which mutations is most likely to cause a phenotypic change?
melomori [17]

The question is incomplete. The complete question is as follows:

Which of the following mutations is most likely to cause a phenotypic change?

A) a duplication of all or most introns

B) a large inversion whose ends are each in intergenic regions

C) a nucleotide substitution in an exon coding for a transmembrane domain

D) a single nucleotide deletion in an exon coding for an active site

E) a frameshift mutation one codon away from the 3' end of the nontemplate strand

Answer: D) a single nucleotide deletion in an exon coding for an active site

Explanation:

Deletion or insertion of a single nucleotide in an axon coding for an active site is called frameshift mutation.

The sequence of codons is read during translation, in order to synthesize a amino acids chain and form a protein from the nucleotide sequence. Frameshift mutations occur when the usual codon sequence is broken by the deletion or addition of one or more nucleotides. For example, if only one nucleotide is removed from the axon sequence during the RNA splicing process, then there will be a disrupted reading frame for all codons before and after the mutation. This may result in several incorrect amino acids being introduced into the protein. Disruption in protein sequence will cause phenotypic change.

Hence, the correct option is D) a single nucleotide deletion in an exon coding for an active site .

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3 years ago
What's the difference between jet streams and global wind belts
Zolol [24]
Jet streams are high speed winds that comes from the west and Global wind<span> belts are when the Earth gets the right amount of heat and the Earths spin.

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6 0
3 years ago
Why do some plants remove water from their cells to reduce the amount of water that freezes inside them during winter
dusya [7]
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A signal is sent from the soma to the ?
aleksley [76]

All neurons have a cell body called the soma. The nucleus of all neurons are found inside of the soma. The soma sends information to other neurons.

4 0
3 years ago
What is the agent of weathering?
Nataliya [291]

Answer:

Explained

Explanation:

Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.

I hope this helped you out a little bit!

7 0
3 years ago
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