Select Board & Class
list any four methods of contraception used by humans. how does their use have a direct effect on the health and prosperity of the family?
why menstrual blood doesn't clot?
in human, the unpaired male reproductive structure is
a) seminal vesicle b) prostate gland c) bulbourethral gland d) testes e) vas deference
Explain the process of oogenesis.
(please explain because i want the proper answer of this ques.)
Draw a neat labelled sketch of Graafian follicle.
how does menstrual flow occurs after tubectomy?... i mean the passage blocked then how does the degnerated egg comes out from...????
Why does breast feeding suspend pregnancy?
spermatogenesis? Briefly describe the process of spermatogenesis.
what is sporogenous tissue?
give a labeled diagram of spermatogenesis as im finding it difficult to understand .
spermatogenesis in human male is a hormone regulated process. justify
Draw a labeled diagram
of female reproductive system.
what is embryo proper?
Sperm enters from which part of egg?
a) From animal pole in unfertilised egg
b) From vegetal pole in unfertilised egg
c) Anywhere in unfertilised egg except animal pole
d) All of the above
why is menstrual cycle absent during pregnancy?
what are the major features of embryonic development during the months of pregnancy?
the function of prostate gland is ......?
WHAT IS THE SIGNIFICANCE OF SPERMATOGENESIS & OOGENESIS?
Why does failure of testes to descend into the scrotum produce sterility?
explain male reproductive system
what is the advantage of retaining the bulk of the nutrient rich cytoplasm of primary oocyte by secondary oocyte?
what is major difference between spermatogenesis & oogenesis?
Name the organs where gametogenesis gets completed in human male and female .
difference between ducts and glands????
what is foetal ejection reflex?
A) Pattern formation
B) Organizer phenomena
C) Axis formation
D) Anamorphosis i m confused as some books have given 2nd and some have given 3rd...so pls tell correct ans with explanation
Secondary oocyte retains bulk of the nutrient rich cytoplasm of the primary oocyte. Can you think of any advantage for this? rn Does the first polar body born out of first meiotic division divide further or degenerate?rn
WHAT IS PREGNANCY HORMONE? WHY IT IS CALLED SO? NAME TWO SOURCES OF THIS HORMONE IN HUMAN FEMALE?
from where do signals of parturition originate and what does maternal pituitary release for stimulating uterine contractions for child birth?
Q--. Identify the wrong statement from the following:a. High levels of estrogen triggers the ovulatory surge.b. Orgonial cells start to proliferate and give rise to functional ova inregular cycles from puberty onwards.c. Sperms released from seminiferous tubules are poorly motile /non-motile.d. Progesterone level is high during the post ovulatory phase ofmenstrual cycle.also explain...........
distingiush b/w morula gastrula and blastula
Can anal sexual intercouse lead to fertilisation?If not, then why it is done?
WHAT IS THE FUNCTION OF INFUNDIBULUM
where do sperm mature and become motile?
DIFFERENCE BETWEEN SPERMIOGENESIS AND SPERMIATION
difference between zoospore and zygote ?
what is oogenesis?
List the changes the primary oocyte underqoes in the tertiary follicular stage in the human ovary.
What are the three major phases of menstrual cycle in primates?Mention the key event in each phase.
what is the main difference between insemination and ejaculation?
why is placenta called a temporary endocrine gland?
what happens to the blastocyst immediately after implantaion?
when and how does placenta develop in human female?
Draw a labeled diagram
A. Corona radiata, zona pellucida, vitelline membrane
B. Zona pellucida, corona radiata, vitelline membrane
C. Vitelline membrane, zona pellucida, corona radiata
D. Zona pellucida, vitelline membrane, corona radiate pls explain with diagram as nothing is mentioned nywhere about vitelline membrane.
which hormone is called as the pregnancy hormone? ...why ?
explain the steps in the formation of an ovum from an oogonium in humans
Draw a labelled diagram of Blastocyst
what is corona radiata?what is the difference between corona radiata and zona pellucida?
why sertoli cells are very much essential during spermatogenesis
why does not all copulations lead to pregnancy???
after tubectomy does menstrual cycle continue? there is a knot tied in the tube so how does the cycle takes place? pls give a proper answer
Which of the following are secretions produced by the spermatozoa at the time of fertilization?
a) Fertilizin and antifertilizin
b) Antifertilizin and sperm lysin
c) Fertilizin and sperm lysin
d) Only sperm lysin
What is mean by Spermlysin ??????????
what is the function of antrum in the grafian follicle?
What is the difference between umbilical cord and placenta??
how does primary spermatocyte differ from spermatogonia?
Draw a labeled diagram
of a Graafian Follicle?
if asked to draw a labbeled diagram of male reproductive system in exam , which one we hav to write ...
there r 2 diagrams in textbook ...
pls answer asap
Assertion:Zona pellucida do not dissappears when blastocyst reaches the uterus .
Reason:Role of zona pellucida is to check the implantation of the blastocyst at the veginal site.
URGENT!! Define seminal vessicles ,,,prostate gland and cowper's gland.????
1.why is oogenesis considered as a discontinous and wasteful process?
2.is ejaculation and insemination the same ?
3.what is monospermy?
4.how implantation takes place ?
does menstruation occur even after tubectomy in females?? and does ovulation too occurs??
What is the difference between blastulation and gastrulation?
what is paturation??
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