In humans, the term embryo refers to the following period of time: ____
a. from the ninth week after fertilization until birth
b. from the eighth week after fertilization until birth
c. from fertilization until the ninth week after fertilization
d. from 2 to 10 weeks after fertilization
e. from 2 to 8 weeks after fertilization
ANSWER: e
You might also like to view...
Body cells of human females contain
a. one X chromosome and one Y chromosome. b. two X chromosomes. c. two Y chromosomes. d. two O chromosomes. e. chromosomes X, Y, and O.
Transcription of a DNA molecule with a nucleotide sequence of AAA-CAA-CTT results in an mRNA molecule with the complementary sequence of
A. CCC-ACC-TCC. B. GGG-AGA-ACC. C. UUU-CUU-CAA. D. TTT-GAA-GCC. E. UUU-GUU-GAA.
The "backbone" of a nucleic acid molecule is made of
A) lipids. B) NAD+ and FAD. C) amino acids. D) ATP molecules. E) sugar and phosphate groups.
Under certain circumstances, a person's resident flora can be opportunistic pathogens.
Answer the following statement true (T) or false (F)