1. Zygote with zona pellucida reaches uterine
cavity by :
a) 2 days
b) 4 days
c) 5 days
d) 6 days
Correct Answer - B
4 days
,2. In spermatogenesis, independent
assortment of paternal and maternal
chromosomes occurs during-
a) Primary to secondary spermatocyte
b) Spermatogonia to primary spermatocyte
c) Secondary spermatocyte to spermatids
d) Spermatids to spermatozoa
Correct Answer - A
Answer- A. Primary to secondary spermatocyte
In spermatogenesis, independent assortment of paternal and
maternal chromosomes occurs during meiosis I, in which primary
spematocyte) to (2n) is converted into two secondary spermatocytes
(In).
,3. Tongue muscles are derived from
a) Lateral plate mesoderm
b) Occipital myotome
c) Intermediate mesoderm
d) Cervical myotome
Correct Answer - B
Ans: B Occipital myotome
Development of the tongue:-
I. Epithelium:
Ant 2/3 -- lingual swellings of 1st arch and tuberculum impar.
Post 1/3 -- large dorsal part of hypobranchial eminence, i.e, 3rd
arch.
Posterior most part -- small dorsal part of the hypobranchial
eminence, i.e. 4th arch.
II. Muscles:
Derived from occipital myotomes except palatoglossus which
is derived from the 6th arch.
, 4. Which of the following is remnant of distal
umbilical artery?
a) Ligamentum Teres
b) Superior Vescical artery
c) Medial umbilical Ligament
d) Ligamentum arteriosum
Correct Answer - C
Ans.C. Medial umbilical Ligament
Remnant of umbilical artery:-
1. Proximal part : Superior vesical artery
2. Distal part: Medial umbilical ligament
cavity by :
a) 2 days
b) 4 days
c) 5 days
d) 6 days
Correct Answer - B
4 days
,2. In spermatogenesis, independent
assortment of paternal and maternal
chromosomes occurs during-
a) Primary to secondary spermatocyte
b) Spermatogonia to primary spermatocyte
c) Secondary spermatocyte to spermatids
d) Spermatids to spermatozoa
Correct Answer - A
Answer- A. Primary to secondary spermatocyte
In spermatogenesis, independent assortment of paternal and
maternal chromosomes occurs during meiosis I, in which primary
spematocyte) to (2n) is converted into two secondary spermatocytes
(In).
,3. Tongue muscles are derived from
a) Lateral plate mesoderm
b) Occipital myotome
c) Intermediate mesoderm
d) Cervical myotome
Correct Answer - B
Ans: B Occipital myotome
Development of the tongue:-
I. Epithelium:
Ant 2/3 -- lingual swellings of 1st arch and tuberculum impar.
Post 1/3 -- large dorsal part of hypobranchial eminence, i.e, 3rd
arch.
Posterior most part -- small dorsal part of the hypobranchial
eminence, i.e. 4th arch.
II. Muscles:
Derived from occipital myotomes except palatoglossus which
is derived from the 6th arch.
, 4. Which of the following is remnant of distal
umbilical artery?
a) Ligamentum Teres
b) Superior Vescical artery
c) Medial umbilical Ligament
d) Ligamentum arteriosum
Correct Answer - C
Ans.C. Medial umbilical Ligament
Remnant of umbilical artery:-
1. Proximal part : Superior vesical artery
2. Distal part: Medial umbilical ligament