Here, you have a case of codominance.
You know that because they tell you that in the presence of both alleles (purple and white) you have a light violet. No one is dominant over the other, both appear as a combination of alleles.
Purple: P
White W
A heterozygous plant has PW alleles.
PW x PW = PP PW WP WW
25% chances of PP (deep purple)
50% chances of PW (ligth violet)
25% chances of WW (white)
There are several ways to treat or cope with presbycusis (age-related hearing loss). Here are some of ways:
1. Hearing Aid(s)
2. Implants (Cochlea, Middle ear) - involves surgical operation
3. Lip reading or speech reading training
4. Hearing assistive devices - sound amplifying devices (cellphones, tablets, etc.)
It would be best to refer to an audiologist or otolaryngologist to for extensive diagnostic evaluation of the gravity of hearing loss and seek proper medical treatment.
It's quite difficult to give you the ansver without any diagram attached. But I think I can help you. I suppose the first, the second and the third atom all are <span>carbon, Then fourth should be sulphur and the last one - nidrogen
The actual look of this task should be like that : </span><span>atom 1,2,3,4-sp2
atom 5-sp3. I hope it will help you in some measure, but next time check it carefully.</span>
