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zalisa [80]
3 years ago
7

Humans evolved ______billion years after the earth was formed

Biology
1 answer:
Novosadov [1.4K]3 years ago
4 0
Humans evolved 3 billion years ago after the earth was formed.<span />
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What two measurements does a GPS device use to find a specific location? How many satellites does a
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Describe the steps in transcription that require complementary base pairing.
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Answer:

Explanation:

Transcription takes place in nucleus in the presence of the enzyme RNA polymerase.

During transcription, the code present in DNA gets transcribed into the code in mRNA.  (messenger RNA)

RNA even though is a single stranded shows base pairing.

The pre-mRNA gets created from the DNA.

DNA has two strands, one of these strands acts as coding and another non coding strand.

The DNA shows base pairing with AGTC.   [A-Adenine, G- Guanine, T-Thymine and C- Cytosine]

Whereas mRNA base pairing with AGUC.  [ U- Uracil ]

Here in mRNA, instead of thymine, uracil gets paired.

According to base pairing of coding strand/sense strand of DNA, complementary bases pairs in 5'---->3' direction in mRNA.

The mRNA created looks exactly like the non-coding strand/sense strand of DNA except instead of thymine, uracil gets replaced.

The pre-RNA undergoes splicing, capping and tailing to form mature mRNA.

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What best explains why different cells within and individual organism function differently
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Animals can exhibit some unique behaviors and have the remarkable ability to learn from their surroundings. Learning happens whe
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Answers attached to image.

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