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Biology 12 Chapter 21
Development and Aging - 11
1.
Pregnancy establishes when………..is implanted into endometrium?
a) Morula
b) Blastocyst
c) Holoblast
d) Epiblast
2.
Which hormone is secreted by embryo after implantation?
a) LH
b) hCG
c) GnRH
d) FSH
3.
What is the main function of hCG?
a) Force corpus luteum to secrete progesterone
b) All of them
c) Maintaining endometrium
d) Inhibiting FSH production
4.
The chorion developing villi burrows into…………of uterus?
a) Endometrium
b) Myometrium
c) Perimetrium
d) All of them
5.
What is the human gestation period?
a) 270
b) 280
c) 260
d) 290
6.
It would take……………days from conception to birth?
a) 280
b) 266
c) 286
d) 260
7.
In how many trimesters gestation period is divided?
a) 2
b) 3
c) 5
d) 4
8.
Which does correspond to 1st trimester?
a) None of them
b) From LMP to 13th week
c) From 28th week to 42nd week
d) From 14th week to 27th week
9.
Which does correspond to 2nd trimester?
a) From LMP to 13th week
b) From 28th week to 42nd week
c) From 14th week to 27th week
d) None of them
10.
Which does correspond to 3rd trimester?
a) From 28th week to 42nd week
b) From 14th week to 27th week
c) From LMP to 13th week
d) None of them
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