(A) Hypoblast
(B) Marginal zone
(C) Epiblast
(D) Area pellucida
Tag: Zoology mcqs
The state of the conception that implants in the uterine wall is?
(A) Morula
(B) Blastomere
(C) Blastocyst
(D) Zygote
Hydra exhibits regeneration of the type?
(A) Morphallaxis
(B) Stem cell mediated
(C) Epimorphic
(D) Compensatory
Adrenal medulla is derivative of?
(A) Mesoderm
(B) Ectoderm
(C) Ectoderm and Endoderm
(D) Ectoderm and Mesoderm
Which of the following is the safest anticoagulant for fetus?
(A) Heparin
(B) NaH2PO4
(C) Sodium citrate
(D) Warfarin
Cataract microcephaly deformities and heart defects are common in infants if mothers are exposed to which teratogenic agents during first trimester of pregnancy?
(A) Thalidomide
(B) Rubella
(C) Retinoic Acid
(D) Alcohol
Folic acid deficiency is believed to be a major cause of what class of malformation?
(A) Neural tube defects
(B) Trisomies
(C) Polyploidy
(D) Duplications
Which of the following can accelerate masculinization?
(A) Alcohol
(B) Androgens
(C) Paramethadione
(D) Streptomycin