The Retroviruses contain reverse transcriptase enzymes that make a dsDNA molecule from their ssRNA genome.
<h3>What is a Retroviruses?</h3>
A Retroviruses is a type of virus that has RNA instead of DNA molecule.
It contains reverse transcriptase enzymes that make a dsDNA molecule from their ssRNA genome.
These viruses are capable of causing the following diseases :
- Acquired immuno deficiency disease (AIDs), and
They are usually transmitted during close contacts.
Therefore, the Retroviruses contain reverse transcriptase enzymes that make a dsDNA molecule from their ssRNA genome.
Learn more about Retroviruses here:
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Answer:
The answer is B.
Explanation:
The United States has been progressively expanding towards the southwest since the start of the country.
D(oxygen) since the mass of the human body is made of six elements oxygen takes up the most percentage
I thank the answer is true
C.
In co-dominance both traits show up, and in incomplete dominance the two traits mix together.
So automatically A, B and D are wrong, since we can see both brown and white colors on the cow separately.
If it were any of those we wouldn't be able to see any of the traits alone they would be a mix.