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Natalka [10]
3 years ago
7

All cells have the same genetic information, but do not express the same genes. How is this possible?

Biology
1 answer:
Verizon [17]3 years ago
4 0

I believe the answer is A.

hope this helps! C":

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The oldest known fossils are ______ years old and resemble formations made by ______. Multiple choice question. 2.5 billion; cya
Lostsunrise [7]

Answer: The question is not complete as options are not complete , the remain part are;

A. 3.7 years, photosynthetic bacteria.

B. 3.7 years cyanobacteria.

The correct option is

3.7 billion years old, cyanobacteria and stromatolite.

Explanation:

This is because cyanobacteria is the oldest fossil to exist and they have been in existence for about 3. 7 billion years. These cyanobacteria photosynthesized because they have thread like chlorophyll filament, they produce food through the process of photosynthesis which is needed for their survival and they release oxygen as bye product.

6 0
3 years ago
A section of DNA encodes a gene for an enzyme involved in cellular metabolism. If a mutation event occurs that results in the de
Lady_Fox [76]

Answer:

The correct answer would be C. The protein synthesized will contain many erroneous amino acids since the loss of one base will shift the reading of the encoded base sequence.

Deletion mutation that does not occur in the multiple of three bases can results in frame-shift mutation.

It changes the reading frame of nucleotide in DNA. Thus, the reading frame of codons in mRNA would also change.

Consequently, the sequence of amino acids in a polypeptide chain would change or alter. Thus, a protein would contain many erroneous amino acids.

An example of the same is shown below in the image.

4 0
3 years ago
What is the flu pathogen?????????
Westkost [7]

Answer:

Its a virus that any people get and some can die. It is also known as Influenze A. For for info look it up

Explanation:

7 0
2 years ago
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How are CO2 and O2 used or produced by orcas?
bagirrra123 [75]

Answer:

basically every living thing breathes oxygen O2 and exhales carbon dioxide CO2

Explanation:

So orcas use O2 and produce then CO2.

4 0
3 years ago
What would be the consequences for a cell if the cell membrane was not large enough to have adequate channels for bringing in nu
lyudmila [28]

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The cell would probably die

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