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level: ALLEN exercise

Questions and Answers List

level questions: ALLEN exercise

QuestionAnswer
in human adult females oxytocincauses strong uterine contractions uring parturition
which of the following is responsible for division of fertilized eggproximal centriole of sperm
during fertilization, intermixing of chromosome of male and female gametes is calledamphimixis
soluble inorganic and organic nutrient materials, hormones, antibodies, against diptheria, smallpox, scarlet fever, measles etc. can pass from the mother to the foetus, so we can say that placenta act as aultra filter
the fertilization cone that pulls the sperm into the egg is formed from theplasma membrane of the egg
the pregnancy test is based on detection of which hormonehCG
how many eggs and spearms are required to produce fraternal twinstwo eggs, two sperms
the corpus luteam is maintained for the first 8 weeks of pregnancy byhCG
how many minimum meiotic divisions are essential for the formation of 120 zygotes in human150
which of the choices below is a function of the vaginaserves as a passageway for menstrual flow, receives semen from the penis during sexual intercourse and is a birth canal
'p' cells start division during foetal development and enter into 'Q' of meiotic division and get temporarily arrested at this stage, called 'R'. identify P, Q and R w.r.t. oogenesisP-oogonia, Q-prophase-1, R-primary oocyte
in human, the placenta is formed from the_____ of the embryo and______ of the motherchorion, endometrium
labia majora is homologous toscrotum
which of the following layer of uterine wall undergoes changes during menstrual cycle?endometrium
primary oocyte surrounded by a layer of granulosa cells is calledprimary follicle
in humans, at the end of the first meiotic division, the male germ cells differentiate into thesecondary spermatocytes
accessory sexual character in female is promoted byestrogen
the human sperm was first seen byhamm and leeuwenhoek
which one holds corona radiatamucopolysaccharide
prostate gland is asemen secreting accessory gland of male
a common scent producing gland among mammals isanal gland
the cavity, which is formed during gastrulation is named asarchenteron
which layer develops first during embryonic developmentendoderm
in gastrulation, which is (are) formedectoderm,mesoderm,endoderm
how many sperms are formed by one primary spermatocyte4
ovulation in the human female normally takes place during the menstrual cycleat the end of the proliferative phase
the animal in which testes descent into scrotom only during breeding seasonbat
in uterus, endometrium, proliferates in response tooestrogen
in mesolecithal eggs, the cleavage isunequal holoblastic
which part of the spermatid forms acrosome of spermgolgi body
the egg of frog istelolecithal
antifertilizin is present onspermatozoa
various changes in mammalian sperm which prepare it to fertilise the ovum are calledcapacitation
phase of menstrual cycle in human that lasts for 7-8 days isproliferative phase
what is true for cleavagesize of cells decrease
at which stage of spermatogenesis, sperms aquire their whole structural maturity and they contain a haploid nucleus and other organellesspermiogenesis
insect's eggs aremegalecithal and centrolecithal
which of the following is not the point correct for gastrulationsome blastomeres and blastocoel degenerate
in human foetus,the heart begins to beat at development age of4 weeks
fixing up of the blastocyst in the wall of the uterus is known asimplantation
archenteron cavity is foundin gastrula
partution duct in female is calledvagina
phase of menstrual cycle when ovulation occurs inproliferate
in mammals the estrogens are secreted by the graafian follicle from itsinternal theca
non-cledoic eggs occur infish
testes descent into scrotum in mammals forspermatogenesis
which have macrolecithal eggsaves, reptilia
cleidoic egg is an adaptation forterrestial life
in mammals eggs are microlecithal and isolecithal because there are mostlyviviparous
eggs of birds aremegalecithal