lildee16lildee
06.04.2020 •
Biology
Eight different strains of Drosophila have been isolated; each shows a recessive white eye trait. Crosses were performed as follows (W indicates white-eyed progeny, R indicates wild-type red eyed progeny).
A B C D E F G HA W W R R W R R WB W R R W R R WC W W R R R RD W R R R RE W R R WF W W R
G W RH Wa) Based on these crosses, how many different genes are present?
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Ответ:
It needs the spines for protection
Explanation:
The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.