Chemoattractive Molecules Are Called _____ and Guide Axons, While Chemorepulsive

question 62

Multiple Choice

Chemoattractive molecules are called _____ and guide axons, while chemorepulsive molecules are called _____ and prevent axon extension in their vicinity.

• A)growth cones; filopodia
• B)semaphorins; netrins
• C)netrins; semaphorins
• D)synapses; netrins

---

Definitions:

Genetic Component

The contribution of genes to the development or manifestation of a trait or condition.

Adopted Children

Children who have been legally taken by individuals or couples to be cared for as their own.

Identical Twins

Twins who develop from a single fertilized egg that splits and forms two embryos, sharing 100% of their DNA.

Nonidentical Twins

Twins born from two separate eggs fertilized at the same time, leading to siblings that share genetic similarities but are not genetically identical.