In a newly fertilized egg, the vitelline layer
A) opens the egg's nuclear membrane to allow haploid sperm DNA to enter.
B) hardens to form a protective cover.
C) secretes hormones that enhance steroidogenesis by the ovary.
D) reduces the loss of water from the egg and prevents desiccation.
E) provides most of the nutrients used by the zygote.

Question

Quizplus · Accepted Answer

The vitelline layer hardens to form a protective cover after fertilization, which helps protect the developing zygote from damage or dehydration.

In a Newly Fertilized Egg, the Vitelline Layer