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12th Biology Weekly Test - 2 ( Zoology - Human Reproduction )

St. Britto Hr. Sec. School - Madurai

12th Biology Weekly Test - 2 ( Zoology - Human Reproduction )-Aug 2020

Time : 2.00 Hours

Part - A

Multiple Choice Question - Answer All Question

The most important hormone in intiating and maintaining lactation after birth is

Oestrogen
FSH
Prolactin
Oxytocin

Wodd Breast feeding week is observed during.

March 1^stweek
December 1^st week
August 1^stweek
July 1^stweek

____ is not linked to male reproductive system.

Prostate gland
Corpus albicans
Cowper's gland
bulbourethral glands

_____ is the birth canal.

Cervix
Cervical canal
Uterus
Vagina

Attachment of blastocyst to the uterine wall is called ______

Implantation
Parturition
Insemination
gastrulation

The whole process of spermatogenesis takes about ______ days.

25
42
64
72

The foetal membrane that forms the basis of the umbilical cord is

Allantois
Amnion
Chorion
Yolk sac

The foetal ejection reflex is also called ____________ reflex.

Ferguson
Let - Down
Braxter - Hicks
Parturition

The mature sperms are stored in the

Seminiferous tubules
Vas deferens
Epididymis
Seminal vesicle

The _____ cells of the testis are endocrine in nature.

sertoli
leydig
nurse
spermatogonic

The Androgen Binding Protein (ABP) is produced by

Leydig cells
Hypothalamus
Sertoli cells
Pituitary gland

Spermatid \(\overset { A }{ \rightarrow }\) Spermatozoa what does 'A' stands for?

Spermatogenesis
Spermiation
Spermiogenesis
Gametogenesis

The thin ring of tissue that particularly closes the vaginal opening ____

labia majora
hymen
labia minora
clitoris

Each testis is covered by a fibrous layer _____

tubulus rectus
corona radiata
vitelline membrane
tunica albuginea

The spermatids are transformed into mature sperms by a process called ______

spermiation
spermiogenesis
gametogenesis
oogenesis

Part - B

Generic 5 - Answer All Question

Explain the various phases of the menstrual cycle.
Give a schematic representation of spermatogenesis and oogenesis in humans.

Differentiate Spermatogenesis and oogenesis.

Write a note a extra embryonic membranes.

Describe the structure of a sperm

Describe the structure of the human ovum with a neat labelled diagram.

Explain the role of oxytocin and relaxin in parturition and lactation.

Explain the process of fertilization in human beings.

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