2nd Year MCQs Biology
Chapter No. 18 Reproduction

91. In human female only one ovum is usually discharged from the ovary at one time and it is called:

(A) Parturition
(B) Menstruation
(C) Ovulation
(D) Implantation

92. Where does the uterus opens into the through cervix?

(A) Fallopian tube
(B) Urethra
(C) Vagina
(D) All of the choices are correct

93. The follicle cells, after release of the egg, are modified to form a special structure called:

(A) Endometrium
(B) Perimetrium
(C) Graafian follicle
(D) Corpus luteum

94. In mammals that are seasonal breeders, females are receptive only once a year. This is called:

(A) A follicular cycle
(B) An estrous cycle
(C) A menstrual cycle
(D) A lute al cycle

95. The lining or inner layer of the uterus is called the:

(A) Myometrium
(B) Perimetrium
(C) Endometrium
(D) Both (A) and (C)

96. What event occurs in the menstrual cycle when the level of progesterone declines?

(A) Ovulation
(B) Beginning of menses
(C) Formation of corpus luteum
(D) Maturation of ovarian follicle

97. What is produced mainly by the corpus luteum in the ovary following ovulation?

(A) Progesterone
(B) Follicle stimulating hormone
(C) Luteinizing hormone
(D) Chorionic gonadotrophic hormone

98. From which of the following structures is the secondary oocyte ovulated?

(A) Corpus luteum
(B) Graafian follicle
(C) Primary follicle
(D) Germinal epithelium

99. The process by which____________ becomes embedded in endometrium is called

(A) Morula, parturition
(B) Blastocyst, parturition
(C) Blastocyst, implantation
(D) Morula, implantation

100. What controls the release of milk form the mammary glands?

(A) Oxytocin
(B) Follicle stimulating hormone
(C) Luteinizing hormone
(D) None of these

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