Multiple Choice
Which of the following is a process by which an initial set of genes turns on a second set of regulatory genes,which eventually turns on a third set of genes?
A) developmental chain reaction
B) gastrulation
C) the sonic hedgehog sequence
D) the genetic cascade
E) somite production
Correct Answer:
Verified
Correct Answer:
Verified
Q6: Of the choices listed,the first event that
Q7: The capacity of some embryonic cells to
Q8: Somites are repeating blocks of ectodermal tissue.
Q9: Bicoid mRNAs are produced by the zygote.
Q10: ZPA cells of the chick embryo produce
Q12: Different cell layers may have different cell
Q13: What is the effect of higher concentration
Q14: The earliest stage of development in which
Q15: The blastula contains an internal structure called
Q16: Which of the following is a morula?<br>A)a