In forg, the sperms released from the testis take the following route to reach the ureter:
Vasa efferentia, Bidder's canal, uriniferous tubule and nephrotome
Vasa efferentia, Bidder's canal, and uriniferous tubule
Vasa efferentia, uriniferous tubule nd Bidder's canal.
Vasa deferentia, uriniferous tubule and Bidder's canal
Correct Answer :
B. Vasa efferentia, Bidder's canal, and uriniferous tubule
Related Questions
In forg, the sperms released from the testis take the following route to reach the ureter:
Vasa efferentia, Bidder's canal, uriniferous tubule and nephrotome
Vasa efferentia, Bidder's canal, and uriniferous tubule
Vasa efferentia, uriniferous tubule nd Bidder's canal.
Vasa deferentia, uriniferous tubule and Bidder's canal
A true coelom is covered by
ectoderm
endoderm
mesoderm
ecto and mesoderm
In order to become structurally and functionally a spermatozoan, each spermatid has to undergo a process of differentiation called
spermiation
spermiogenesis
spermatogenesis
androgenesis
During fertilization the spermatozoa penetrate through the egg membranes with the help of
flagellum
acrosome
sperm lysins released from the acrosome
mitochondira located at the middle piece
In frog, gastrulation is completed by
epiboly
emboly
both and
delamination
The formation of the neural tube is known as
neurulation
tubulation
crania tion
none of these
Which one has the capacity to reproduce without fertilization of eggs ?
Spider
Crow
Honeybee
Earthworm
For fertilization of the frog's egg
sperms of same species are essential
sperms do not need penetration
sperms of any animal can fertilize
only presence of male is sufficient
The allantoic vesicle arises from
foregut
midgut
hindgut
somatopleure
Development of egg without fertilization is termed as
parthenogenesis
parthenocarpy
polyembryony
paedogenesis
During cleavage, the embryo
enlarges in size
decreases in size
retains the same size at the beginning
gradually enlarges in size
Spermatoliosis is a process by which
the spermatids differentiate into spermatozoa
primary spermatcyte is tarnsformed into a secondary spermatocyte
spermatogonea complete multiplication phase
secondary spermatocyte extrudes polar bodies
If an unfertilized frog's egg is pricked with a micro-needle, it will
die immediately
start dividing
will remain undivided
transform into a tadpole at a faster rate
A freshly unfertilised egg of hen contains
one cell
100 cells
1000 cells
10000 cells
Cleidoic eggs are found in
birds
mammals
insects
molluscs
Which of the following develops from ectoderm ?
Spinal cord and brain
Liver and heart
Eye and skin
Notochord and vertebral colum.
The nervous system, epidermis and hairs and nails are derivatives of
endoderm
mesoderm
ectoderm
chordomesoderm
Human beings are
monoecious
dioecius
intersexual
hermaphrodites
Mammalian placenta is
a cord between mother and foetus
place of attachment in uterus wall where exchange of material between mother and foetus takes place
outer covering of foetus
allantoic part of the uterus
Grey cresent is present in
zygote of frog
brain of rabbit
eye of frog
retina of cockroach
Embryo sac in a hen's egg is formed by
ectoderm
meso derm
somatic mesoderm and endoderm
splanchnic mesoderm and ectoderm
Meroblastic cleavage is found in
man
hen's egg
frog
rabbit
In frog's egg the divisoin is
holoblastic
meroblastic
diploblastic
triploblastic
When the eggs are released from the ovary of frogs they are at the
primary oocyte stage
secondary oocyte stage
ootid stage
matured ova stage
Blastopore in frogs development occurs in
blastula and opens in blastocoel
blastula and opens in archenteron
gastrula and opens in blastocoel
gastrula and opens in archenteron
Which of the following do not show parental care over their young ones ?
mammals
lizards
fowls
earwigs
Antifertilizin is secreted by
fertilized egg
spermatozoa
unfertilized egg
egg membranes
The sexual embrage of the male and female frogs is called
copulation
amphimixis
syngamy
amplexus
The expulsion of completely developed foetus from the uterus is known as
ovuation
placentation
gestation
parturition
Oogonia entering the growth phase of oogenesis is called
primary oocyte
secodnary oocyte
ootid
gonocyte