Nucleotide sequences from two strands of DNA are shown below.

Biology

1 answer:

alexandr402 [8]3 years ago

4 0

The third codon (three bases) in the sequence was mutated from GAT to AAT. The GAT codon translates to the amino acid aspartic acid. The AAT codon translates to the amino acid asparagine. This is what's called a point mutation, specifically a missense mutation since the translated amino acid is changed. Deletion and inversion mutations are not the answer because these mutations involve the chromosomes as a whole, not just bases. Frame shift mutations occur when 1 or 2 (but not 3) bases are added or deleted from the sequence causing an array of point mutations (domino effect).

You might be interested in

A plant is pollinated by a species of moth. The moths lay their eggs in the flowers of the plant for protection and food. Which

tankabanditka [31]

<u>Mutualism</u>. Both species directly benefit from one another.

3 0

3 years ago

Read 2 more answers

Use week 17 vocabulary

Softa [21]

Answer:

Explanation:

6 0

3 years ago

What experimental evidence is there for the origin of life hypotheses?

ololo11 [35]

"The earliest evidence of life on Earth comes from fossils discovered in Western Australia that date back to about 3.5 billion years ago. These fossils are of structures known as stromatolites, which are, in many cases, formed by the growth of layer upon layer of single-celled microbes, such as cyanobacteria. (Stromatolites are also made by present-day microbes, not just prehistoric ones.)

The earliest fossils of microbes themselves, rather than just their by-products, preserve the remains of what scientists think are sulfur-metabolizing bacteria. The fossils also come from Australia and date to about 3.4 billion years ago

Bacteria are relatively complex, suggesting that life probably began a good deal earlier than 3.5 billion years ago. However, the lack of earlier fossil evidence makes pinpointing the time of life’s origin difficult (if not impossible)."

(credit: https://www.khanacademy.org/science/biology/history-of-life-on-earth/history-life-on-earth/a/hypotheses-about-the-origins-of-life)

<u>and for the love of god please change that profile picture</u>

5 0

4 years ago

Which statement about volcanoes is true?

pochemuha

I think the B is correct

7 0

4 years ago

Read 2 more answers

Wegener’s theory of _____ says that land masses move slowly

Soloha48 [4]