Answer:
75% brown, 25% white
Explanation:
This question involves a single gene coding for color in chickens. The allele for brown color (B) is dominant over the allele for white color (b).
According to this question, a brown rooter with genotype 'BB' was crossed with a white hen (bb). The offsprings in the F1 generation will all possess the 'Bb' genotype and be brown colored. However, if these F1 offsprings are self-mated i.e Bb × Bb, the proportion of F2 offsprings will be 1BB, 2Bb, 1bb.
Since BB, Bb and Bb offsprings are Brown in color and bb is white in color, this means that the expected phenotypic appearance of the F2 offsprings will be:
¾ or 75% brown and ¼ or 25% white
Answer:
Los reactantes de la fotosíntesis son el dióxido de carbono y el agua. Estas son las moléculas necesarias para iniciar el proceso. Pero un artículo más es necesario, y esa es la luz solar.La clorofila es el pigmento verde en las hojas que captura la energía del sol.
Used to define and identify geological times.<span />
Among others, both plants and animals need oxygen and water. They also both need space and air.