Menstrual flow results in the discharge of
a. the follicle.
b. the corpus luteum.
c. the lining of the endometrium.
d. surface cells from the vagina.
e. blood from vessels on the outer side of the uterus.
C
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DNA replication is bidirectional in prokaryotes with circular chromosomes
Indicate whether the statement is true or false.
Which maternal serum marker pattern indicates increased risk of Down syndrome in a fetus?
A) Deficient hCG and inhibin A and elevated AFP, estradiol, and pregnancy-associated plasma protein A Progesterone and testosterone B) Elevated hCG, inhibin A, AFP, estradiol, and pregnancy-associated plasma protein C) Deficient hCG, inhibin A, AFP, estradiol, and pregnancy-associated plasma protein D) Elevated hCG and inhibin A and deficient AFP, estradiol, and pregnancy-associated plasma protein A
In which of the stages below does each
chromosome consist of two DNA molecules? I. metaphase II. telophase III. prophase IV. anaphase a. III and IV b. I, III, and IV c. I and III d. I, II, and III e. I, II, III, and IV
Members of the group A streptococci (GAS) cause all of the following EXCEPT
A) strep throat. B) scarlet fever. C) rheumatic fever. D) pharyngitis. E) epiglottitis.