Contact of an egg with signal molecules on sperm causes the egg to undergo a brief
A) mitosis.
B) membrane depolarization.
C) apoptosis.
D) vitellogenesis.
E) the acrosomal reaction.
Answer: B) membrane depolarization.
You might also like to view...
You have a sequence of DNA with a site on which the restriction enzyme EcoRI will act. EcoRI recognizes the sequence below and cuts each strand at the locations indicated by the arrows
Below is your sequence of DNA. You cut it with EcoRI. What fragments are produced? 5'ATTCGCGGAATTCTGG3' 3'TAAGCGCCTTAAGACC5' A. 5'ATTCGCGG3' 5'AATTCTGG3' 3'TAAGCGCCTTAA5' 3'GACC5' B. 5'ATTCGCGGAATT3' 5'CTGG3' 3'TAAGCGCC5' 3'TTAAGACC5' C. 5'ATTCGCGG3' 5'AATTCTGG3' 3'TAAGCGCC5' 3'TTAAGACC5' D. 5'ATTCGCG3' 5'GAATTCTGG3' 3'TAAGCGCCTTAAG5' 3'ACC5' E. 5'ATTCGCGG3' 5'AATT3' 5'CTGG3' 3'TAAGCGCC5' 3'TTAA5' 3'GACC5'
What do NADH and FADH2 deliver to electron transfer chains?
a. electrons b. ATP c. oxygen d. electrons and hydrogen ions e. phosphate
Which of these fatty acids is most likely to be a liquid at room temperature?
a. stearic acid
b. trans oleic acid
c. cis oleic acid
d. both oleic acids
Which of the following statements regarding scald burns is correct?
A) Once hot liquids come in contact with clothing, heat is rapidly dissipated. B) Scald burns often cover large surface areas because liquids spread quickly. C) Scald burns caused by grease or oil are typically limited to the epidermis. D) Scald burns are less commonly seen in pediatric patients than adult patients.