<span>Alleles are two different forms of single gene that are located in specific position on a specific chromosome. It can be classified into two allele pairs: homozygous and heterozygous. In homozygous, both alleles are the same whether they are both dominant or recessive; while in heterozygous, one allele is dominant and the other is recessive.</span>
Answer:
lanthanoids and actanoids I believe.
Thus, Cactus survive with the help of its "green stems" and "transpiration".
Cross: Ib Ib × Ia Ib
Offspring: IaIb , IbIb, IaIb, IbIb
ab = 50%
b = 50%
a = 0%
In short, Your Answer would be Option A) 0%
Hope this helps!