If an unfertilized ovum of frogs is pricked with a micro- needle , it will :

If an unfertilized ovum of frogs is pricked with a micro- needle , it will :
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If an unfertilized ovum of frogs is pricked with a micro- needle , it will : A. Die immediately B. Start dividing C. Remain undivided D. None of these
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If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is (a) coelomic fluid (b) haemolymph (c) slimy mucus (d) excretory fluid.

Description : If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is (a) coelomic fluid (b) haemolymph (c) slimy mucus (d) excretory fluid.

Last Answer : (a) coelomic fluid

A pin pricked through the iPhone speaker increases volume?

Description : A pin pricked through the iPhone speaker increases volume?

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Description : Is it a superstition that when there is a wasp sting in a pear, it is poisonous? I have a hole in my pear.

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How can one tell if a non-blooming aucuba is male or unfertilized female?

Description : How can one tell if a non-blooming aucuba is male or unfertilized female?

Last Answer : You tell the difference by the blooms. Female blooms are close to the leaves. Male blooms are raised up and away from the leaves on panicles. I don't know for sure, but I doubt putting ... or insects to pollinate them. Call your local county extension agent. They are usually a wealth of information.

Assertion : The honey bee queen copulates only once in her life time. Reason : The honey bee queen can lay fertilized as well as unfertilized eggs.

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When a female reaches puberty the uterus sheds an unfertilized egg along with the?

Description : When a female reaches puberty the uterus sheds an unfertilized egg along with the?

Last Answer : What is the answer ?

Is there any difference in the nutritional value of fertilised eggs and unfertilized eggs?

Description : Is there any difference in the nutritional value of fertilised eggs and unfertilized eggs?

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Which organ of the female reproductive system sheds an unfertilized egg every month?

Description : Which organ of the female reproductive system sheds an unfertilized egg every month?

Last Answer : The uterus has a lining of blood in it. When the unfertilized egg passes through the uterus it sheds this lining which causes the blood to come out.

Embryo originates from unfertilized egg

Description : Embryo originates from unfertilized egg

Last Answer : Ans. Parthenogenesis

Development of embryo from unfertilized egg is known as A) Parthenogenesis B) Parthenocarpy C) Apomixsis D) None of the above

Description : Development of embryo from unfertilized egg is known as A) Parthenogenesis B) Parthenocarpy C) Apomixsis D) None of the above

Last Answer : A) Parthenogenesis

2. A human cell containing 22 autosomes and a Y chromosome is probably a a) somatic cell of male b) sperm cell c) somatic cell of female d) unfertilized egg cell

Description : 2. A human cell containing 22 autosomes and a Y chromosome is probably a a) somatic cell of male b) sperm cell c) somatic cell of female d) unfertilized egg cell

Last Answer : b) sperm cell

Which of the following refers to the development of viable individuals from unfertilized eggs? a) self-fertilization b) hermaphroditic reproduction (pronounced her - MAF - ro - dit - ik) c) parthenogenesis

Description : Which of the following refers to the development of viable individuals from unfertilized eggs? a) self-fertilization b) hermaphroditic reproduction (pronounced her - MAF - ro - dit - ik) c) parthenogenesis

Last Answer : ANSWER: C -- PARTHENOGENESIS

What is the process by which an animal may develop from an UNfertilized egg?

Description : What is the process by which an animal may develop from an UNfertilized egg?

Last Answer : ANSWER: PARTHENOGENESIS (pron: par-then-a-GEN-a-sis)

Anyone had experience or seriously looked into freezing a reproductive egg (ovum)?

Description : Anyone had experience or seriously looked into freezing a reproductive egg (ovum)?

Last Answer : You may want to look at this article. It does not sound promising. Only two in 100 ova are viable on thawing, and they haven't even been fertilized or implanted yet. You can maybe produce as many as 20 eggs ... to find out about them. I wish you the best of luck. I hope you have the child you want.

Explain the steps in the formation of an ovum from an oogonium in humans. or Suggest and explain any three Assisted Reproductive Technologies (ART) to an infertile couple. -Biology

Description : Explain the steps in the formation of an ovum from an oogonium in humans. or Suggest and explain any three Assisted Reproductive Technologies (ART) to an infertile couple. -Biology

Last Answer : Three reproductive techniques for sterile couple are: (i) In vitro fertilisation The fertilisation outside the body in almost similar conditions as that in the body followed by embryo transfer to the ... to form an embryo in the laboratory in which a sperm is directly injected into the ovum.

(i) Mention the event that induces the completion of the meiotic division of the secondary oocyte. (ii) Trace the journey of the ovum from the ovary, its fertilisation and further development until the implantation of the embryo. -Biology

Description : (i) Mention the event that induces the completion of the meiotic division of the secondary oocyte. (ii) Trace the journey of the ovum from the ovary, its fertilisation and further development until the implantation of the embryo. -Biology

Last Answer : (i)Secondary oocyte completes meiosis-ll only when a sperm enters its cytoplasm. It forms a larger cell, the ootid and a small cell, the second polar body. (ii)The secondary oocyte is ... and inner cell mass.The trophoblast attacheds to endometrium (implantation) and blastocyst gets embedded in it.

(i)Explain the events taking place at the time of fertilisation of an ovum in a human female. (ii)Trace the development of the zygote up to its implantation in the uterus. (iii)Name and draw a labelled sectional view of the embryonic stage that gets implanted. -Biology

Description : (i)Explain the events taking place at the time of fertilisation of an ovum in a human female. (ii)Trace the development of the zygote up to its implantation in the uterus. (iii)Name and draw a labelled sectional view of the embryonic stage that gets implanted. -Biology

Last Answer : (i)In humans, the fertilisation of ovum takes place in ampullary-isthmic junction of Fallopian tube. The events that occur during the process of fertilisation are: (a) The sperm reaches the ... endometrium of the uterus. This is called implantation.(iii) Blastocyst stage implants in the uterus.

Explain the events that occur during fertilisation of an ovum in humans. How is it that only one sperm enters the OVUm? -Biology

Description : Explain the events that occur during fertilisation of an ovum in humans. How is it that only one sperm enters the OVUm? -Biology

Last Answer : (i)In humans, the fertilisation of ovum takes place in ampullary-isthmic junction of Fallopian tube. The events that occur during the process of fertilisation are: (a) The sperm reaches the ... that blocks the entry of additional sperms. This ensures that only one sperm can fertilise an ovum

How is the entry of only one sperm ensured into an ovum during fertilisation in humans? -Biology

Description : How is the entry of only one sperm ensured into an ovum during fertilisation in humans? -Biology

Last Answer : During fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum and induces changes (depolarisation) in the membrane that blocks the entry of additional sperms. This ensures that only one sperm can fertilise an ovum

What is the structure and function of a human ovum(egg) cell? -Biology

Description : What is the structure and function of a human ovum(egg) cell? -Biology

Last Answer : answer:

What is the structure and function of a human ovum(egg) cell? -Biology

Description : What is the structure and function of a human ovum(egg) cell? -Biology

Last Answer : answer:

In human beings, normally in which part, does the sperm fertilize the ovum? -Do You Know?

Description : In human beings, normally in which part, does the sperm fertilize the ovum? -Do You Know?

Last Answer : answer:

Where is the ovum formed ?

Description : Where is the ovum formed ?

Last Answer : The ovum is formed in the female germ cell.

What are both ovum and sperm ?

Description : What are both ovum and sperm ?

Last Answer : : Both ovum and sperm are haploid

What happens during fertilization when many sperms reach close to ovum

Description : What happens during fertilization when many sperms reach close to ovum

Last Answer : What happens during fertilization when many sperms reach close to ovum A. Cells of corona radiata trap ... the one nearest to ovum lose their tails.

Second maturation division of mammalian ovum occurs

Description : Second maturation division of mammalian ovum occurs

Last Answer : Second maturation division of mammalian ovum occurs A. Until after sperm has penetrated ovum B. ... after ovulation before entry into fallopian tube.

Layers of an ovum from outside to inside is

Description : Layers of an ovum from outside to inside is

Last Answer : Layers of an ovum from outside to inside is A. Coron a radiata, zona pellucida, ... radiats D. Zona pellucida,vitelline membranecorona radiata.

Cytoplasm of ovum does not contain:

Description : Cytoplasm of ovum does not contain:

Last Answer : Cytoplasm of ovum does not contain: A. Golgi complex B. Mitochondria only C. Centrosome D. Ribosomes.

Fertilization of ovum occur in

Description : Fertilization of ovum occur in

Last Answer : Fertilization of ovum occur in A. Fimbriae of oviduct B. Isthmus of oviduct C. Ampulla of oviduct D. None of the above.

Fusion of sperm and ovum is

Description : Fusion of sperm and ovum is

Last Answer : Fusion of sperm and ovum is A. Amphimixis B. Regeneratin C. Fertilization `rarr` Cleavage `rarr` Zygote ... `rarr` Gastrula. D. None of the above.

If mammalian ovum fails to get fertilised, which one of the following is unlikely?

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.

Assertion : During oogenesis polar bodies are formed . Reason : Primary function of formation of polarbodies is to bring haploidy of ovum .

Description : Assertion : During oogenesis polar bodies are formed . Reason : Primary function of formation of polarbodies is to bring haploidy of ovum .

Last Answer : Assertion : During oogenesis polar bodies are formed . Reason : Primary function of formation of ... . If both Assertion & Reason are False.

Assertion : Presence of zona pallucida over the fertilized ovum prevents ectopic pregnancy . Reason : Zona pellucida helps the ovum to penetrate endom

Description : Assertion : Presence of zona pallucida over the fertilized ovum prevents ectopic pregnancy . Reason : Zona pellucida helps the ovum to penetrate endom

Last Answer : Assertion : Presence of zona pallucida over the fertilized ovum prevents ectopic pregnancy . Reason : Zona ... . If both Assertion & Reason are False.

Assertion : Normally monospermy occurs in most of animals . Reason : Vitelline membrane of ovum checks polyspermy .

Description : Assertion : Normally monospermy occurs in most of animals . Reason : Vitelline membrane of ovum checks polyspermy .

Last Answer : Assertion : Normally monospermy occurs in most of animals . Reason : Vitelline membrane of ovum checks ... D. If both Assertion & Reason are False.

Assertion : The nucleus of sperm fuses with the nucleus of ovum , before the formation of ootid . Reason : Diploid nuclear status of organism is essen

Description : Assertion : The nucleus of sperm fuses with the nucleus of ovum , before the formation of ootid . Reason : Diploid nuclear status of organism is essen

Last Answer : Assertion : The nucleus of sperm fuses with the nucleus of ovum , before the formation of ootid . ... . D. If both Assertion & Reason are False.

Assertion : The acrosomal secretions of sperm , help it in entering in the cytoplasm of the ovum . Reason : It contains sperm lysin .

Description : Assertion : The acrosomal secretions of sperm , help it in entering in the cytoplasm of the ovum . Reason : It contains sperm lysin .

Last Answer : Assertion : The acrosomal secretions of sperm , help it in entering in the cytoplasm of the ovum . ... . D. If both Assertion & Reason are False.

Assertion : Sperm formation continues even in old men but formation of ovum caeses in women around the age of fifty years . Reason : Human male having

Description : Assertion : Sperm formation continues even in old men but formation of ovum caeses in women around the age of fifty years . Reason : Human male having

Last Answer : Assertion : Sperm formation continues even in old men but formation of ovum caeses in women around the ... D. If both Assertion & Reason are False.

The part where fertilization of ovum occurs in placental mammals is :

Description : The part where fertilization of ovum occurs in placental mammals is :

Last Answer : The part where fertilization of ovum occurs in placental mammals is : A. Ovary B. Uterus C. Vagina D. Fallopian tube

Various changes in mammalian sperm which prepare it to fertilise the ovum are called :

Description : Various changes in mammalian sperm which prepare it to fertilise the ovum are called :

Last Answer : Various changes in mammalian sperm which prepare it to fertilise the ovum are called : A. Capacitation B. Regeneration C. Growth D. None of these

From a to d which of the following statements are correct ? (a) Fertilisation can occur only if the ovum and sperm are transported simultaneously to t

Description : From a to d which of the following statements are correct ? (a) Fertilisation can occur only if the ovum and sperm are transported simultaneously to t

Last Answer : From a to d which of the following statements are correct ? (a) Fertilisation can occur only if the ovum and sperm ... b and c C. c and d D. b and d

The second maturation division of the mammalian ovum occurs

Description : The second maturation division of the mammalian ovum occurs

Last Answer : The second maturation division of the mammalian ovum occurs A. In the Graafian follicle following the ... the sperm has fused with that of the ovum

At the time of birth , ovum arrested is the form of :-

Description : At the time of birth , ovum arrested is the form of :-

Last Answer : At the time of birth , ovum arrested is the form of :- A. Oogonia B. Primary oocyte C. Secondary oocytes D. Egg

What will happen the lining of the uterus after day 28 if an ovum was fertilized?

Description : What will happen the lining of the uterus after day 28 if an ovum was fertilized?

Last Answer : Need answer

What day in the cycle an ovum is most likely to be fertilized?

Description : What day in the cycle an ovum is most likely to be fertilized?

Last Answer : Need answer

Identical twins are born when (a) Two sperms fertilise one ovum (b) Two sperms fertilise two ovums simultaneously (c) Open sperm fertilizes the ovum and zygote divides into two separate cells developing independently (d) One sperm fertilises two ovums

Description : Identical twins are born when (a) Two sperms fertilise one ovum (b) Two sperms fertilise two ovums simultaneously (c) Open sperm fertilizes the ovum and zygote divides into two separate cells developing independently (d) One sperm fertilises two ovums

Last Answer : Ans:(c)

The term ‘Test Tube Baby’ implies (a) Fertilisation of ovum takes place I the test tube but it develops in uterus (b) Fertilisation of ovum takes place in the test tube and develops in the test tube itself (c) Fertilisation of the ovum takes place in the uterus but develops in the test tube (d) Fertilisation takes place in uterus and embryo develops in uterus

Description : The term Test Tube Baby' implies (a) Fertilisation of ovum takes place I the test tube but it develops in uterus (b) Fertilisation of ovum takes place in the test tube and develops in ... uterus but develops in the test tube (d) Fertilisation takes place in uterus and embryo develops in uterus

Last Answer : Ans:(a)

In test-tube babies, the - (1) Ovum is fertilized and developed in testtubes (2) Ovum is fertilized in the test-tubes and developed in uterus (3) Ovum is fertilized in the uterus and developed in test-tubes (4) Ovum is developed without fertilization in test-tubes

Description : In test-tube babies, the - (1) Ovum is fertilized and developed in testtubes (2) Ovum is fertilized in the test-tubes and developed in uterus (3) Ovum is fertilized in the uterus and developed in test-tubes (4) Ovum is developed without fertilization in test-tubes

Last Answer : (2) Ovum is fertilized in the test-tubes and developed in uterus Explanation: In vitro fertilization is a process by which an egg is fertilized by sperm outside the body. The process ... zygote) is then transferred to the patient's uterus with the intention of establishing a successful pregnancy.

What is the chromosome number in a human ovum? (1) 24 (2) 46 (3) 48 (4) None of these

Description : What is the chromosome number in a human ovum? (1) 24 (2) 46 (3) 48 (4) None of these

Last Answer : (2) 46 Explanation: Chromosomes are long Stringy aggregates of genes that carry heredity information. They are composed of DNA and proteins and are located within the nucleus of our cells. Chromosomes determine ... for a total of 46. There are 22 pairs of autosomes and one pair of sex chromosomes.

The following are true about the DNA in mitochondria: a. they are found in the ovum and not the spermatozoan b. they have their own genome c. they are expressed in muscle cells d. all above

Description : The following are true about the DNA in mitochondria: a. they are found in the ovum and not the spermatozoan b. they have their own genome c. they are expressed in muscle cells d. all above

Last Answer : all above

An abnormal human baby with ‘XXX’ sex chromosomes was born due to (a) fusion of two ova and one sperm (b) fusion of two sperms and one ovum (c) formation of abnormal sperms in the father (d) formation of abnormal ova in the mother.

Description : An abnormal human baby with ‘XXX’ sex chromosomes was born due to (a) fusion of two ova and one sperm (b) fusion of two sperms and one ovum (c) formation of abnormal sperms in the father (d) formation of abnormal ova in the mother.

Last Answer : (d) formation of abnormal ova in the mother.