Becker's World of the Cell 9th Edition by Lewis Kleinsmith, Jeff Hardin, Gregory Paul Bertoni

تمرين 9

Homeotic Genes in Drosophila. Homeotic genes are considered crucial to early development in Drosophila because... (Indicate true or false for each statement, and explain your answer.)
(a)... they encode proteins containing zinc finger domains.
(b)... mutations in homeotic genes are always lethal.
(c)... they control the expression of many other genes required for development.
(d)... homeodomain proteins act by influencing mRNA degradation.