Gametogenesis

Question 1

Pre embryonic period

Answer 1

0-2 weeks

Question 2

Embryonic period

Answer 2

3-8 weeks

Question 3

Fetal period

Answer 3

9th week till birth

Question 4

Primordial germ cells are produced by

Answer 4

Epiblast - 2nd week

Question 5

Pluripotent cells forms

Answer 5

all germ layers

Question 6

Gonads are formed by

Answer 6

Primordial germ cells from epiblast

Question 7

Abnormal migration of primordial germ cells to head and neck region

Answer 7

Carnio - pharyngeal teratoma

Question 8

Abnormal migration of PGC to sacrococcygeal region

Answer 8

Sacrococcygeal teratoma

Question 9

Reasons for formation of sacrococcygeal teratoma

Answer 9

Abnormal migration of PGC to sacrococcygeal region and persistence of primitive streak

Question 10

Ability to form entire embryo and extra embryonic tissue

Answer 10

Totipotent cell

Question 11

Forms all Germ layers

Answer 11

Plueripotent cell

Question 12

Ability to form more than one category of cell

Answer 12

Multipotent cell

Question 13

Ability to form one category of cell

Answer 13

Oligopotent cell

Question 14

Ability to form one type of cell

Answer 14

Unipotent cell

Question 15

Order of potency of cells

Answer 15

Toti > Pluri > Multi > Oligo > Uni

Question 16

Equational division

Answer 16

Mitosis

Question 17

Reduction division

Answer 17

Meiosis

Question 18

Mitosis occurs in

Answer 18

Body cells

Question 19

Meiosis occurs in

Answer 19

Germ cells

Question 20

Crossing over does not take place in

Answer 20

Mitosis

Question 21

Crossing Over takes place in

Answer 21

Meiosis

Question 22

Daughter cells resemble parent in which type of division

Answer 22

Mitosis

Question 23

Daughter cell does not resemble parents cell in

Answer 23

Meiosis

Question 24

Phases of Meiosis

Answer 24

Prophase, Metaphase, Telophase, Anaphase - P-MAT

Question 25

Stages in prophase

Answer 25

Leptotene, Zygotene, Pachytene, Diplotene.

Question 26

Resting phase of Prophase -

Answer 26

Diplotene

Question 27

Unequal division of cytoplasm is seen in

Answer 27

Oogenesis - Meiosis 1

Question 28

A cell without cytoplasm

Answer 28

Polar body

Question 29

Meiosis 2 is arrested in

Answer 29

Metaphase

Question 30

Meiosis 1 is arrested in

Answer 30

Prophase - Diplotene stage

Question 31

Corpus luteum persists for

Answer 31

12-14 days

Question 32

Shrunken Corpus luteum is called

Answer 32

Corpus albicans

Question 33

Polar bodies are not formed in

Answer 33

Males - spermatogenesis

Question 34

Polar bodies are formed in which division

Answer 34

Meiosis 1 and 2

Question 35

Spermiogenesis

Answer 35

Rearrangement of organelles - formation of tail, acrosomal cap, Shedding of Excess cytoplasm

Question 36

Rearrangement of organelles of Spermatid - formation of tail, acrosomal cap, Shedding of Excess cytoplasm

Answer 36

Spermiogenesis

Question 37

Spermatid to spermatozoa is called as

Answer 37

Spermiogenesis

Question 38

one primary spermatocyte forms

Answer 38

4 spermatids

Question 39

One Spermatogonium forms how many Spermatozoa

Answer 39

64-512

Question 40

Time taken for spermatogenesis to complete

Answer 40

74 days

Question 41

IN males meiosis occurs in

Answer 41

Seminiferous tubules

Question 42

Sperm maturation and motility is attained in

Answer 42

Epididymis

Question 43

Capacitation of sperms occurs in

Answer 43

Female genital tract

Question 44

Conditioning of sperms is called as

Answer 44

Capacitation.

Question 45

Totipotent cell - example

Answer 45

Zygote

Question 46

Pluripotent cell - Example

Answer 46

PGC

Question 47

Multipotent cell - Example

Answer 47

HSC, NSC, MSC.

Question 48

Oligopotent cell - Example

Answer 48

Vascular stem cell