Multiple Choice
According to the phylogeny in the figure below,which of the following statements is true? 
A) All chordates have a neural tube.
B) Echinoderms have a neural tube.
C) Amphioxus have a neural crest.
D) All chordates have a neural crest.
Correct Answer:
Verified
Correct Answer:
Verified
Q15: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB1615/.jpg" alt=" The process in
Q16: Based on the figures below,how are transcription
Q17: A totipotent cell<br>A)is fixed into a single
Q18: Paedomorphosis may involve<br>A)acceleration or hypermorphosis.<br>B)progenesis or neoteny.<br>C)acceleration
Q19: By transferring neural crest cells from a
Q21: What is a paralog?<br>A)A homeobox gene<br>B)A homologous
Q22: Gene duplication can occur for both protein
Q23: Hagfish,lampreys,gnathostomes,mammals,birds,fish,reptiles,and amphibians are all vertebrates and are
Q25: If paedomorphosis via neoteny involves the retention
Q25: Hox genes encode<br>A)proteins involved in RNA translocation.<br>B)ribosomal