Description : In oogensis, egg is fertilised by sperm at which stage?
Last Answer : In oogensis, egg is fertilised by sperm at which stage? A. Primary oocyte B. Secondary oocyte C. Oogonium D. Ovum.
Description : What happens if an egg is not fertilised?
Last Answer : If the egg is not fertilized it disintegrates (breaks down) and menstruation (your period) begins 11-16 days later. The mature egg is fertilized when it is joined with a sperm cell.
Description : Transgenic animals may be prepared by introducing a foreign gene into (A) Somatic cells of young animals (B) Testes and ovaries of animals (C) A viral vector and infecting the animals with the viral vector (D) Fertilised egg and implanting the egg into a foster mother
Last Answer : Answer : D
Description : Which of the following statements is correct with reference to a test tube baby? (a) Fertilisation of the egg is effected outside the body; the fertilised egg is then placed in the womb of the mother ... . (d) Fertilisation of the egg and growth of the embryo are affected in a large test tube.
Last Answer : (a) Fertilisation of the egg is effected outside the body; the fertilised egg is then placed in the womb of the mother where the gestation is completed.
Description : What is true about cleavage in the fertilised egg in humans? (a) It starts while the egg is in fallopian tube. (b) It starts when the egg reaches uterus. (c) It is meroblastic. (d) It is identical to the normal mitosis
Last Answer : (a) It starts while the egg is in fallopian tube
Description : In humans, the development of fertilised egg takes place in the a) ovary b)testis c)oviduct d)uterus
Last Answer : d)uterus
Description : Assertion : The duct - billed Platypus and the spiny anteater, both are egg - laying animals yet are grouped under mammals. Reason : Both of them have
Last Answer : Assertion : The duct - billed Platypus and the spiny anteater, both are egg - laying animals yet ... false D. If both Assertion and Reason are false.
Description : An egg - laying mammals is
Last Answer : An egg - laying mammals is A. Kangaroo B. Platypus C. Koala D. Whale
Description : Eggs of egg laying mammals are
Last Answer : Eggs of egg laying mammals are A. Marcolecithal B. Alecithal C. Mesolecithal D. Telolecithal
Description : Egg laying mammals are mostly native of
Last Answer : Egg laying mammals are mostly native of A. India B. Australia C. Africa D. Arabia
Description : Adaptation for approach of sperm of egg in mammals -
Last Answer : Adaptation for approach of sperm of egg in mammals - A. Sperm kept inactive till ejaculation B. Very ... C. Peristalsis of oviduct D. All the above
Description : In mammals egg are microlecithal and isolecithal because these are :-
Last Answer : In mammals egg are microlecithal and isolecithal because these are :- A. Oviparous B. Viviparous C. Ovoviviparous D. None of them
Description : Dinosaurs were - (1) mammals that became extinct (2) large herbivorous creatures which gave rise to hippopotamus species (3) egg-laying mammals (4) reptiles that became extinct
Last Answer : (4) reptiles that became extinct Explanation: Although the word dinosaur means "terrible lizard," the name is somewhat misleading, as dinosaurs are not lizards. Rather, they represent a separate ... be dinosaurs, most of the scientific community believed dinosaurs to be sluggish and cold-blooded.
Description : Write down the characteristics of egg laying mammals?
Last Answer : i) These mammals lay eggs. Mostly two eggs are laid in one year. ii) Eggs are laid in burrows of animals. iii) Young ones are hatched from eggs. iv) Their egg laying ... shows their relationship with reptiles. v) Their common examples are duck bill platypus, spiny anteater.
Description : Dinosaurs were (1) mammals that became extinct (2) large herbivorous creatures which gave rise to hippopotamus species (3) egg-laying mammals (4) reptiles that became extinct
Last Answer : reptiles that became extinct
Description : If mammalian ovum fails to get fertilised, which one of the following is unlikely?
Last Answer : If mammalian ovum fails to get fertilised, which one of the following is unlikely? A. ... rapidly declines D. Estrogen secretion further decreases.
Description : Is there any difference in the nutritional value of fertilised eggs and unfertilized eggs?
Last Answer : No.
Description : A test tube baby means : (1) a baby grown in a test tube. (2) embryo fertilised in uterus and developed in test tube. (3) embryo fertilised and developed in uterus. (4) fertilisation in vitro and then transplantation in the uterus.
Last Answer : (4) fertilisation in vitro and then transplantation in the uterus. Explanation: In vitro fertilisation is a process by which an egg is fertilised by sperm outside the body: in vitro. IVF is a ... to collect a naturally selected ovum (egg) for fertilisation, it is known as natural cycle IVF.
Description : The test tube baby means (a) fertilisation and development both in uterus (b) fertilisation in vitro and then transplantation in uterus (c) a baby grown in test tube (d) fertilised and developed embryo in test tube.
Last Answer : (b) fertilisation in vitro and then transplantation in uterus
Description : Test tube baby means a baby born when (a) it is developed in a test tube (b) it is developed through tissue culture method (c) the ovum is fertilised externally and thereafter implanted in the uterus (d) it develops from a non-fertilised uterus.
Last Answer : (c) the ovum is fertilised externally and thereafter implanted in the uterus
Description : If mammalian ovum fails to get fertilised, which one of the following is unlikely? (a) Corpus luteum will disintegrate. (b) Progesterone secretion rapidly declines. (c) Estrogen secretion further increases. (d) Primary follicle starts developing.
Last Answer : (c) Estrogen secretion further increases.
Description : Which one of the following is the correct matching of the events occurring during menstrual cycle? (a) Proliferative phase : Rapid regeneration of myometrium and maturation of Graafian follicle (b) ... ) Ovulation : LH and FSH attain peak level and sharp fall in the secretion of progesterone
Last Answer : (b) Secretory phase : Development of corpus luteum and increased secretion of progesterone
Last Answer : fertilisation in vitro and then transplantation in the uterus.