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What glycoprotein in the zona pellucida serves as a receptor for sperm?

What is the outcome of neurulation?

What is the term for the blastocyst attaching to the endometrium around day six after fertilization?

Which organ produces progesterone and estrogens after the third month of pregnancy?

Which phase of meiosis involves the separation of homologous chromosomes?

Which muscle in the scrotum helps regulate the temperature of the testes?

Cytokinesis involves the formation of what structure in animal cells?

Explain the difference between the D-flip-flop and the D-latch, and what relation the D-flip-flop has to a register.

What is the initial diploid cell involved in oogenesis called?

What part of the sperm contains enzymes necessary for fertilization?