ZOO501 Quiz 2

ZOO501-Developmental-Biology Quiz No.2

MUHAMMAD IMRAN · ZOO501-Developmental-Biology · Quiz No.2

1. only the cytoplasm of the blastodisc becomes the embryo, this type of meroblastic cleavage is called discoidal present in _________________________________________________________________________ fishes.
2. The……..is characteristic of several animal groups, including annelid worms, some flatworms, and most molluscs__________________________________________________________ Spiral holoblastic cleavage
3. The release of calcium from intracellular storage can be monitored visually using calcium activated luminescent dyes such as aequorin (isolated from luminescent jellyfish) or fluorescent dyes such as _____________________fura-2
4. the mitotic division of the nucleus is called____________________________________________ karyokinesis
5. The resulting larvae of snail is called ……..which resemble tiny bear traps_________________________ glochidia
6. The egg microvilli attach to………provides support for the blastomeres________________________ hyaline layer
7. Blastulae produced by radial cleavage have no blastocoel and are called________________ stereo blastulae
8. Directly beneath the sea urchin egg plasma membrane are about …cortical granules__________________15,000.
9. The drug …….is a calcium ionophore (a compound that transports free calcium ions across lipid

membranes_______________________________________________________________________ A23187

10. The…………… initiated by sodium influx into the cell in the sea urchin____________________________ fast block