What began as a single fertilized egg has just separated into two distinct eggs. This indicates the formation of ____ twins that has occurred during the ____ period of development.
a. fraternal; zygotic
b. fraternal; embryonic
c. identical; zygotic
d. identical; embryonic
Question 2
Who is experiencing the first indicator of the onset of puberty in a typical female?
a. Mary, whose pubic hair has started to grow
b. Terri, who has just begun to menstruate
c. Geri, whose breasts have started to grow
d. Carrie, who has just begun to ovulate
Donor DNA is transferred as a single strand
A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain
Colors separated by a prism into the spectrum
An open chamber MRI may be more comfortable for the patient, but images may not be as distinct.
Bug depositing fertilized eggs on a pine needle
Creation of transgenic salmon through injection of DNA into salmon eggs