Which event of fertilization occurs first?

A. the acrosomal reaction
B. the entry of sperm DNA into the egg
C. the cortical reaction
D. cleavage
E. vitelline layer hardens


Answer: A

Biology & Microbiology

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Fill in the blank(s) with correct word

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a. alcohol b. bilirubin c. cholesterol d. bicarbonate e. urea

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__________ is produced by the anterior lobe of the pituitary

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Children with hereditary retinoblastoma inherit a chromosome 13 from one parent that has which of the following defects in the RB gene?

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