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
amino acids with single and three code
Colors separated by a prism into the spectrum
Identical twins (monozygotic twins) have the same sex and share a single genotype.
(a) Monozygotic (MZ) twins result from the fertilization of a single egg by a single sperm. After on
What single payment one year from now would be economically equivalent to payments of $1,000 ...
Homologous recombination: single versus double crossovers