Both are 50%, this is because Rr is dominant in a purple stem and rr is recessive in a green stem. By crossing these plants Rxr= Rr and rxr= rr.
Answer:
well it would have to be out of your 23 pairs, but which ever it is will have an entire section of the chromosome missing, hence the name deletion.
Explanation:
They are ineffective against viral infections because viruses can not be treated with antibiotics.