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Alik [6]
3 years ago
5

Changes on the number, type, or order of bases on a strand of dna are

Biology
1 answer:
padilas [110]3 years ago
3 0
It is mutations.....

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PLEASE HELP ME ASAP!!!
frosja888 [35]
Mutation is a source but it is not the main source after it comes recombination in which 2 chromosomes with “normal” survival are taken from natural population of Drosophila and combined. Then comes immigration of genes in which the new chromosome mix in with different gene frequencies.
4 0
3 years ago
What type of current is most likely found in the deeper ocean depths and why?
Paladinen [302]

Answer:

c

Explanation:

7 0
2 years ago
In the cross BB x bb, the percent of offspring in the F1 generation that will have the same genotype as one of their parents is
EleoNora [17]
It would 0%
You have to make the chart to figure this out.
You put BB on the top and bb on the side than multiply.
6 0
3 years ago
Read 2 more answers
Examine the words and/or phrases below and determine the relationship
gizmo_the_mogwai [7]
Natural gas

explanation:
solar power, coal, and petroleum are used to power things (i.e. produce electricity)
3 0
2 years ago
Describe the steps in transcription that require complementary base pairing.
nalin [4]

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.

5 0
3 years ago
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