Answer:
25% heterozygous tall
Explanation:
If we take the F1 generation as parents and let them self-fertilise, we have 4 crosses.
The first one for homozygous tall, then we have 100% AA.
The second and third one for heterozygous tall and we have 25% AA, 50%Aa and 25%aa for each of them.
The last one would be for dwarf, and we'll have 100%aa.
Adding all of them, we'll have
AA = 100 + 25 + 25 = 150%
Aa = 50+50 = 100%
aa = 100 + 25 + 25 = 150%
as we had 4 crosses, so dividing the total percentages by 4, we'll have,
AA = 37.5%
Aa = 25%
aa = 37.5%
:. The percentage of heterozygous tall would be 25%.
Hope it helps:)
I believe the answer to be true
BUT I AM NOT 100% SURE!
Answer: Memory B cells
Explanation:
Memory B cells remember the same pathogen for faster antibody production in future infections.
I think they represent dominant and recessive
Answer:
D. it is not true reproduction as a host cell is required to build new viruses
Explanation:
Viruses reproduce by using host cells to convert them into that virus. That is how they spread throughout your body.
