La diferencia entre geocentrico y heliocentrico

Explanation:

English-The geocentric model says that the earth is at the center of the cosmos or universe, and the planets, the sun and the moon, and the stars circles around it. The early heliocentric models consider the sun as the center, and the planets revolve around the sun.

Spanish-El modelo geocéntrico dice que la tierra está en el centro del cosmos o universo, y los planetas, el sol y la luna, y las estrellas giran a su alrededor. Los primeros modelos heliocéntricos consideran al sol como el centro y los planetas giran alrededor del sol.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)