In humans, at the end of the first meiotic division, the male germ cells differentiate into the

In humans, at the end of the first meiotic division, the male germ cells differentiate into the
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In humans, at the end of the first meiotic division, the male germ cells ... Spermatozonia C. Primary spermatocytes D. Secondary spermatocytes
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n humans, at the end of the first meiotic division, the male germ cells differentiate into the (a) spermatids (b) spermatogonia (c) primary spermatocytes (d) secondary spermatocytes.

Description : n humans, at the end of the first meiotic division, the male germ cells differentiate into the (a) spermatids (b) spermatogonia (c) primary spermatocytes (d) secondary spermatocytes.

Last Answer : (d) secondary spermatocytes.

How many meiotic divisions are required during the formation of 500 zzygotes, if in males one meiotic division result in formation of four male gamete

Description : How many meiotic divisions are required during the formation of 500 zzygotes, if in males one meiotic division result in formation of four male gamete

Last Answer : How many meiotic divisions are required during the formation of 500 zzygotes, if in males one meiotic division ... A. 625 B. 500 C. 1000 D. 2500

Megaspores are produced from the megaspore mother cells after (a) mitotic division (b) formation of thick wall (c) differentiation (d) meiotic division.

Description : Megaspores are produced from the megaspore mother cells after (a) mitotic division (b) formation of thick wall (c) differentiation (d) meiotic division.

Last Answer : d) meiotic division.

What type of cell division produces germ cells ?

Description : What type of cell division produces germ cells ?

Last Answer : In meiosis cell division, germ cells are produced.

Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous tubules lined with male germ cells and sertoli ce

Description : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous tubules lined with male germ cells and sertoli ce

Last Answer : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous ... . If both Assertion & Reason are False.

First meiotic division during Oogenesis occurs in:

Description : First meiotic division during Oogenesis occurs in:

Last Answer : First meiotic division during Oogenesis occurs in: A. First polar body B. Second polar body C. Primary oocytes D. Secondary polar body

(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.

Each secondary spermatocyte after second meiotic division produces

Description : Each secondary spermatocyte after second meiotic division produces

Last Answer : Each secondary spermatocyte after second meiotic division produces A. Four haploid spermatids B. ... haploid spermatids D. Two diploid spermatids.

Secondary spermatocytes undergo second meiotic division during spermatogenesis to produce.

Description : Secondary spermatocytes undergo second meiotic division during spermatogenesis to produce.

Last Answer : Secondary spermatocytes undergo second meiotic division during spermatogenesis to produce. A. ... Spermatogonia `rarr` Sperms D. Spermatogonia

In angiosperms regarding development of microgametophyte each microspore mother cell undergoes (a) Mitosis to produce 4 microspores (b) Two successive mitosis to form 4 microspores (c) Two successive meiotic division to form 4 microspores (d) Meiosis to produce 4 haploid microspores

Description : In angiosperms regarding development of microgametophyte each microspore mother cell undergoes (a) Mitosis to produce 4 microspores (b) Two successive mitosis to form 4 microspores (c) Two successive meiotic division to form 4 microspores (d) Meiosis to produce 4 haploid microspores

Last Answer : Ans. ((d))

Crossing over is followed by a. Meiotic division I b. Meiotic division II, c. Both d. None

Description : Crossing over is followed by a. Meiotic division I b. Meiotic division II, c. Both d. None

Last Answer : Both

The figure shows a section of human ovary. Select the option which gives the correct identification of either A  or  B with function/characteristic(a) B- Corpus luteum - Secretes progesterone (b) A- Tertiary follicle - Forms Graafian follicle (c) B- Corpus luteum - Secretes estrogen (d) A- Primary oocyte - It is in the prophase I of the meiotic division

Description : The figure shows a section of human ovary. Select the option which gives the correct identification of either A  or  B with function/characteristic (a) B- Corpus luteum - Secretes progesterone (b) A- ... Secretes estrogen (d) A- Primary oocyte - It is in the prophase I of the meiotic division

Last Answer : (a) B- Corpus luteum - Secretes progesterone

Meiotic division of the secondary oocyte is completed (a) prior to ovulation (b) at the time of copulation (c) after zygote formation (d) at the time of fusion of a sperm with an ovum.Meiotic division of the secondary oocyte is completed (a) prior to ovulation (b) at the time of copulation (c) after zygote formation (d) at the time of fusion of a sperm with an ovum.

Description : Meiotic division of the secondary oocyte is completed (a) prior to ovulation (b) at the time of copulation (c) after zygote formation (d) at the time of fusion of a sperm with an ovum.

Last Answer : (d) at the time of fusion of a sperm with an ovum.

In grasses what happens in microspore mother cell for the formation of mature pollen grains? (a) One meiotic and two mitotic divisions (b) One meiotic and one mitotic divisions (c) One meiotic division (d) One mitotic division

Description : In grasses what happens in microspore mother cell for the formation of mature pollen grains? (a) One meiotic and two mitotic divisions (b) One meiotic and one mitotic divisions (c) One meiotic division (d) One mitotic division

Last Answer : (b) One meiotic and one mitotic divisions

Anaphase in second meiotic division is characterized by:

Description : 26. Anaphase in second meiotic division is characterized by: (a) Separation of non-homologous chromosomes (b) Separation of homologous chromosomes (c) Separation of chromatids (d) All of them

Last Answer : Answer: c Separation of chromatids

In humans the oocyte is maintained in a state of meiotic arrest by the secretion of

Description : In humans the oocyte is maintained in a state of meiotic arrest by the secretion of

Last Answer : In humans the oocyte is maintained in a state of meiotic arrest by the secretion of A. Granulosa cells B. Zona pellucida C. Cumulus oophorus D. Theca.

If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultan eousely, what will be the ratio of ova and sperms p

Description : If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultan eousely, what will be the ratio of ova and sperms p

Last Answer : If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultan eousely, what will be ... `1:2` C. `1:4` D. `2:1`

What is the function of germ pore? (a) Emergence of radicle (b) Absorption of water for seed germination (c) Initiation of pollen tube (d) Release of male gametes

Description : What is the function of germ pore? (a) Emergence of radicle (b) Absorption of water for seed germination (c) Initiation of pollen tube (d) Release of male gametes

Last Answer : (c) Initiation of pollen tube

3What is the function of germ pore?a)Initiation of pollen tubeb)Release of male gametesc)Emergence of radicled)Absorption of water for seed germination

Description : 3What is the function of germ pore?a)Initiation of pollen tubeb)Release of male gametesc)Emergence of radicled)Absorption of water for seed germination

Last Answer : a)Initiation of pollen tube

What mode of cell division sperm cells to be formed in the haploid male bee?

Description : What mode of cell division sperm cells to be formed in the haploid male bee?

Last Answer : Need answer

What is the English of germ cells ?

Description : What is the English of germ cells ?

Last Answer : Gametic cell English .

How many germ cells mate in sexual reproduction ?

Description : How many germ cells mate in sexual reproduction ?

Last Answer : Sexual reproduction involves the union of 2 germ cells

Which type of germ cells contain 23 chromosomes

Description : Which type of germ cells contain 23 chromosomes

Last Answer : Which type of germ cells contain 23 chromosomes A. Spermatogonia B. Primary spermatocytes C. Secondary spermatocytes D. None of above

Where does mitosis happen in somatic or germ cells?

Description : Where does mitosis happen in somatic or germ cells?

Last Answer : Mitosis happens in the somatic cell

Sertoli cells are found in (a) ovaries and secrete progesterone (b) adrenal cortex and secrete adrenaline (c) seminiferous tubules and provide nutrition to germ cells (d) pancreas and secrete cholecystokinin.

Description : Sertoli cells are found in (a) ovaries and secrete progesterone (b) adrenal cortex and secrete adrenaline (c) seminiferous tubules and provide nutrition to germ cells (d) pancreas and secrete cholecystokinin.

Last Answer : (c) seminiferous tubules and provide nutrition to germ cells

what is difference between mitotic and meiotic interphase ? -Biology

Description : what is difference between mitotic and meiotic interphase ? -Biology

Last Answer : answer:

Variations during mutations of meiotic recombinations are

Description : Variations during mutations of meiotic recombinations are

Last Answer : Variations during mutations of meiotic recombinations are A. Random and directionless B. Randonm and ... and small D. Randonm, small adn directional

Identify the meiotic sage in which the homologous chromosomes separate while the sister chromatids remain associated at their centrometres. Or In whic

Description : Identify the meiotic sage in which the homologous chromosomes separate while the sister chromatids remain associated at their centrometres. Or In whic

Last Answer : Identify the meiotic sage in which the homologous chromosomes separate while the sister chromatids remain ... II C. Metaphase I D. Metaphase II

Neurospora is used as genetic material because (a) It has short life cycle of 10 days (b) The product of single meiosis can be easily analysed (c) Meiotic products are linearly arranged in the form of ordered tetrads (d) Is a diploid fungus

Description : Neurospora is used as genetic material because (a) It has short life cycle of 10 days (b) The product of single meiosis can be easily analysed (c) Meiotic products are linearly arranged in the form of ordered tetrads (d) Is a diploid fungus

Last Answer : Ans:(a)

Total number of meiotic divisions required for forming 100 zygotes/100 grains of wheat is (a) 100 (b) 75 (c) 125 (d) 50

Description : Total number of meiotic divisions required for forming 100 zygotes/100 grains of wheat is (a) 100 (b) 75 (c) 125 (d) 50

Last Answer : (c) 125

Number of meiotic divisions required to produce 200/400 seeds of pea would be (a) 200/400 (b) 400/800 (c) 300/600 (d) 250/500

Description : Number of meiotic divisions required to produce 200/400 seeds of pea would be (a) 200/400 (b) 400/800 (c) 300/600 (d) 250/500

Last Answer : (d) 250/500.

Offsets are produced by (a) meiotic divisions (b) mitotic divisions (c) parthenocarpy (d) parthenogenesis

Description : Offsets are produced by (a) meiotic divisions (b) mitotic divisions (c) parthenocarpy (d) parthenogenesis

Last Answer : b) mitotic divisions

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres. (a) Metaphase I (b) Metaphase II (c) Anaphase I (d) Anaphase I

Description : Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres. (a) Metaphase I (b) Metaphase II (c) Anaphase I (d) Anaphase I

Last Answer : (c) Anaphase I

How many meiotic divisions are required to produce 200 microspores from functional microspore mother cell

Description : 1. How many meiotic divisions are required to produce 200 microspores from functional microspore mother cell ? a) 400 b) 50 c) 200 d) 100

Last Answer : b) 50

Offsets are produced by (1) Meiotic divisions (2) Mitotic divisions (3) Parthenocarpy (4) Parthenogenesis

Description : Offsets are produced by (1) Meiotic divisions (2) Mitotic divisions (3) Parthenocarpy (4) Parthenogenesis

Last Answer : (2) Mitotic divisions

Male gametes in angiosperms are formed by the division of (a) generative cell (b) vegetative cell (c) microspore mother cell (d) microspore.

Description : Male gametes in angiosperms are formed by the division of (a) generative cell (b) vegetative cell (c) microspore mother cell (d) microspore.

Last Answer : (a) generative cell

What term refers to the process in cells differentiate into layers with each layer ultimately forming distinct parts of the fetus?

Description : What term refers to the process in cells differentiate into layers with each layer ultimately forming distinct parts of the fetus?

Last Answer : Gastrulation

The term that is used to refer to a primitive cell, capable of selfreplication and differentiation, is a) stem cell. Stem cells may differentiate into myeloid or lymphoid stem cells. b) band cell. A band cell is a slightly immature neutrophil. c) spherocyte. A spherocyte is a red blood cell without central pallor. d) reticulocyte. A reticulocyte is a slightly immature red blood cell.

Description : The term that is used to refer to a primitive cell, capable of selfreplication and differentiation, is a) stem cell. Stem cells may differentiate into myeloid or lymphoid stem cells. b) band ... blood cell without central pallor. d) reticulocyte. A reticulocyte is a slightly immature red blood cell.

Last Answer : a) stem cell. Stem cells may differentiate into myeloid or lymphoid stem cells.

Which germ layer developes first during embryonic development?

Description : Which germ layer developes first during embryonic development?

Last Answer : Which germ layer developes first during embryonic development? A. Ectoderm B. Mesoderm C. Endoderm D. Both 1 and 3

How do male humans display lek mating behavior?

Description : How do male humans display lek mating behavior?

Last Answer : Teasing and acting weird.

Why do male humans have two testicles and not one? or three?

Description : Why do male humans have two testicles and not one? or three?

Last Answer : I think having two testicles can ensure some kind of backup when one testicle is damaged and there is no space for a third :p

Which one of the following conditions correctly describes the manner of determining the sex? (a) Homozygous sex chromosomes (ZZ) determine female sex in birds. (b) XO type of sex chromosomes determine male sex in grasshopper. (c) XO condition in humans as found in Turner’s syndrome, determines female sex. (d) Homozygous sex chromosomes (XX) produce male in Drosophila.

Description : Which one of the following conditions correctly describes the manner of determining the sex? (a) Homozygous sex chromosomes (ZZ) determine female sex in birds. (b) XO type of sex chromosomes ... s syndrome, determines female sex. (d) Homozygous sex chromosomes (XX) produce male in Drosophila.

Last Answer : (b) XO type of sex chromosomes determine male sex in grasshopper.

. Which one of the following is an example of polygenic inheritance? (a) Skin colour in humans (b) Flower colour in Mirabilis jalapa (c) Production of male honeybee (d) Pod shape in garden pea

Description : . Which one of the following is an example of polygenic inheritance? (a) Skin colour in humans (b) Flower colour in Mirabilis jalapa (c) Production of male honeybee (d) Pod shape in garden pea

Last Answer : (a) Skin colour in humans

The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for (a) maintaining the scrotal temperature lower than the internal body temperature (b) escaping any possible compression by the visceral organs (c) providing more space for the growth of epididymis (d) providing a secondary sexual feature for exhibiting the male sex.

Description : The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for (a) maintaining the scrotal temperature lower than the internal body ... growth of epididymis (d) providing a secondary sexual feature for exhibiting the male sex.

Last Answer : (a) maintaining the scrotal temperature lower than the internal body temperature

What is the difference between a somatic cell and a germ cell?

Description : What is the difference between a somatic cell and a germ cell?

Last Answer : A: A somatic cell is any cell in the body that is not a germ cell, which are the cells that give rise to eggs or sperm. Somatic cells are diploid, meaning they have two copies of each chromosome, while germ cells are haploid, meaning they have only one copy of each chromosome.

Do you agree with this acquaintance's thoughts on the "germ" situation?

Description : Do you agree with this acquaintance's thoughts on the "germ" situation?

Last Answer : I’d remind her there are more critters and germs inside her gut than that little cob would ever carry on the ground. Most critters and germs are our friends.

Is wheat germ still in favor as a health food?

Description : Is wheat germ still in favor as a health food?

Last Answer : answer:Since I eat steel-cut oat meal almost daily, I have the germ as part of the whole package. My feeling these days is, when I can manage it, to eat as close to the source as possible. Edamame beans trump soy. Quinoa trumps bread.

Is it a good idea to put Wheat Germ on a hamburger in order to increase personal fiber intake?

Description : Is it a good idea to put Wheat Germ on a hamburger in order to increase personal fiber intake?

Last Answer : answer:If you are eating burgers, the iconic American dish, don’t mess with them. You can get fiber in a dozen other different and appetizing ways.

How do I clean my new second hand fridge to ensure it is germ free?

Description : How do I clean my new second hand fridge to ensure it is germ free?

Last Answer : Use a spray-cleaner that contains bleach. I returned from winter break to find my fridge covered in mold, and that’s what I used. Worked like a charm, the fridge was uber clean and spotless. Kinda smelled like bleach for a couple days, but there’s a comfort in that :D

How well does Germ X work?

Description : How well does Germ X work?

Last Answer : I’ve never noticed sticky hands from Germ-X. I use “original”, perhaps you are using some with aloe. I know that aloe can leave a sticky residue behind on hands.