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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?
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.
why menstrual blood doesn't clot?
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...????
spermatogenesis? Briefly describe the process of spermatogenesis.
how mammary glands are integrated structurally and functionally to support the process of ovulation, fertilization, pregnancy, birth and child care?????
plz explain, these lines are written in NCERT textbook.
what is sporogenous tissue?
what is embryo proper?
give a labeled diagram of spermatogenesis as im finding it difficult to understand .
Draw a labeled diagram
of female reproductive system.
why is menstrual cycle absent during 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?
A female of 30 yrs age attained puberty at the age of 13 yrs. She has three children born by normal delivery. How many polar body are formed in her body till date. (Each M.C. is of 30 days) :
The correct answer is (3). Could you please explain ?
Question from Human Reproduction Class XII
explain male reproductive system
what is major difference between spermatogenesis & oogenesis?
difference between ducts and glands????
difference between testosterone and androgens. also tell their functions.
what is foetal ejection reflex?
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?
The ensure of effectiveness of reproduction and survival of embryo in mammals is :
from where do signals of parturition originate and what does maternal pituitary release for stimulating uterine contractions for child birth?
1.What is the difference between seminal plasma,seminal secretion and semen?
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
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.
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...........
What are the three major phases of menstrual cycle in primates?Mention the key event in each phase.
why is placenta called a temporary endocrine gland?
why sertoli cells are very much essential during spermatogenesis
when and how does placenta develop in human female?
spermatogenesis in human male is a hormone regulated process. justify
Define peripheral cortex & Inner medulla??
which hormone is called as the pregnancy hormone? ...why ?
what is spermatic cord? What is gubernaculum?
Draw a labeled diagram
Draw a labelled diagram of Blastocyst
explain the steps in the formation of an ovum from an oogonium in humans
what is corona radiata?what is the difference between corona radiata and zona pellucida?
why does not all copulations lead to pregnancy???
What is mean by Spermlysin ??????????
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
What is the difference between umbilical cord and placenta??
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
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?
After a successful in vitro fertilization the fertilized egg begins for begins to divide where is this egg transferred before it reaches the 8 cell stage What is the techniques?
what are inguinal canal?
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