1
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Winged pollen grains are present in
A
Mustard
B
Cycas
C
Mango
D
Pinus
2
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Double fertilization is
A
fusion of two male gametes of a pollen tube with two different eggs
B
fusion of one male gamete with two polar nuclei
C
fusion of two male gametes with one egg
D
syngamy and triple fusion
3
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Hormones secreted by the placenta to maintain pregnancy are
A
hCG, hPL, progestogens, prolactin
B
hCG, hPL, estrogens, relaxin, oxytocin
C
hCG, hPL, progestogens, estrogens
D
hCG, progestogens, estrogens, glucocorticoids
4
NEET 2018
MCQ (Single Correct Answer)
+4
-1
The amnion of mammalian embryo is derived from
A
ectoderm and mesoderm
B
endoderm and mesoderm
C
mesoderm and trophoblast
D
ectoderm and endoderm
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12