Circle these two words within each statement. By applying the acrosome technique, researchers have shown that bindin is localized on the acrosomal process of sea urchin sperm that have undergone the immunostaining reaction. Involution is defined as the flowing of an expanding outer epithelium over the inside of an opening to the edge. Neural plate formation relies on vertical signals from the underlying blastopore and on planar signals passing from the dorsal chordamesoderm lip through the blastocoel roof. Complete each of the following sentences by inserting one word into each blank space so that a scientifically and linguistically correct statement results.
Hyphenated words count as one word.
Most animals store large amounts of RNA in their oocytes. Outline the mechanisms used to provide large amounts of ribosomal RNA and messenger RNA to oocytes A. in frogs, B. in flies. With regard to flies, describe a key experiment by which RNA supply to the oocyte has been analyzed. During meiosis as well as mitosis, the chromosomes are oriented in a spindle between two centrosomes. If you don't know the answer directly, infer it from what you know about the plane of cytokinesis during frog meiosis and first cleavage and from the rule that the plane of cytokinesis is perpendicular to the spindle axis.