I'm sorry, but is this a question? I'm a bit confused.
Answer:
The brothers have different alleles.
Explanation:
The answer is (A. mitosis)
Solutions that have more or greater concentration of hydroxide ions (OH-) than hydrogen ions (H+) are basic or alkali in nature. They showcase the properties of a base and not of an acid.
If you look at the female cat's genital area,the space just under her tail,it will look like an upside down an exclamation mark (!) with the long slit of vaginal area below the anus. while the male cat has a narrow space between the anus and the penis, with the testicles in the middle... i hope u will understand!... :)