In sea urchins, the "fast block" and the longer lasting "slow block" to polysper

Author Question: In sea urchins, the "fast block" and the longer lasting "slow block" to polysper (Read 1642 times)

sammy

Hero Member
Posts: 818

on: Oct 2, 2013

In sea urchins, the "fast block" and the longer lasting "slow block" to polyspermy, respectively, are
A) the acrosomal reaction and the formation of egg white.
B) the cortical reaction and the formation of yolk protein.
C) the jelly coat of the egg and the vitelline membrane.
D) membrane depolarization and the cortical reaction.
E) inactivation of the sperm acrosome.

Yolanda

Hero Member
Posts: 757

Reply #1 on: Oct 7, 2013

For sure it has to be D Mark as solved once you're done!

Need homework help now?

Ask unlimited questions for free

Ask a Question

« previous next »

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.