Why testes descend down In human male fetus before birth?

Why testes descend down In human male fetus before birth?
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1 Answer

Answer :

Look up the SRY gene located on the sex chromosomes. The SRY gene when turned on in epistatis controls that.
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Related questions

Assertion : During embrynic stage testes descend down and at the time of birth , it comes into scrotum . Reason : Spermatogenesis process requires les

Description : Assertion : During embrynic stage testes descend down and at the time of birth , it comes into scrotum . Reason : Spermatogenesis process requires les

Last Answer : Assertion : During embrynic stage testes descend down and at the time of birth , it comes into scrotum ... . D. If both Assertion & Reason are False.

The testes normally descend into the scrotum about (a) 6 months into pregnancy (b) the time of birth (c) the age of 3 months (d) the time of puberty

Description : The testes normally descend into the scrotum about (a) 6 months into pregnancy (b) the time of birth (c) the age of 3 months (d) the time of puberty

Last Answer : Ans:(b)

Testes descend into scrotum in mammals for

Description : Testes descend into scrotum in mammals for

Last Answer : Testes descend into scrotum in mammals for A. Spermatogenesis B. Fertilization C. Development of sex organs D. Development of visceral organs.

In mammals , failure of testes to descend into scrotum is known as

Description : In mammals , failure of testes to descend into scrotum is known as

Last Answer : In mammals , failure of testes to descend into scrotum is known as A. Paedogenesis B. Castration C. Cryptorchidism D. Impotency

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.

Male reproductive organs of flukes have A A. Two testes B. Two pair of testes C. Numerous testes D. Both a and b

Description : Male reproductive organs of flukes have A A. Two testes B. Two pair of testes C. Numerous testes D. Both a and b

Last Answer : Two testes

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

Select the correct route for the passage of sperms in male frogs.(a) Testes → Vasa efferentia → Kidney → Seminal vesicle → Urinogenital duct → Cloaca (b) Testes → Vasa efferentia → Bidder’s canal → Ureter → Cloaca (c) Testes → Vasa efferentia → Kidney → Bidder’s canal → Urinogenital duct → Cloaca (d) Testes → Bidder’s canal → Kidney → Vasa efferentia → Urinogenital duct → Cloaca

Description : Select the correct route for the passage of sperms in male frogs. (a) Testes → Vasa efferentia → Kidney → Seminal vesicle → Urinogenital duct → Cloaca (b) Testes → Vasa efferentia → Bidder's canal ... → Cloaca (d) Testes → Bidder's canal → Kidney → Vasa efferentia → Urinogenital duct → Cloaca

Last Answer : (c) Testes → Vasa efferentia → Kidney → Bidder’s canal → Urinogenital duct → Cloaca

In male cockroaches, sperms are stored in which part of the reproductive system? (a) Seminal vesicles (b) Mushroom glands (c) Testes (d) Vas deferens

Description : In male cockroaches, sperms are stored in which part of the reproductive system? (a) Seminal vesicles (b) Mushroom glands (c) Testes (d) Vas deferens

Last Answer : (a) Seminal vesicles

.Which one of the following cells, found in testes of rabbit, secretes male hormone? (a) Epithelial cells (b) Spermatocytes (c) Leydig’s cell (d) Sertoli cells

Description : .Which one of the following cells, found in testes of rabbit, secretes male hormone? (a) Epithelial cells (b) Spermatocytes (c) Leydig’s cell (d) Sertoli cells

Last Answer : (c) Leydig’s cell

What part or parts of the male and female reproductive systems are typically colonized by indigenous microbiota? a. Male: Ureters; Female: Vagina And Ovaries b. Male: Testes And Epididymis c. Male: Urethra; Female: Vagina, Vulva, And Cervix d. Male: Bladder And Ureters; Female: Fallopian Tubes And Cervix

Description : What part or parts of the male and female reproductive systems are typically colonized by indigenous microbiota? a. Male: Ureters; Female: Vagina And Ovaries b. Male: Testes And Epididymis c. Male: ... : Vagina, Vulva, And Cervix d. Male: Bladder And Ureters; Female: Fallopian Tubes And Cervix

Last Answer : c. Male: Urethra; Female: Vagina, Vulva, And Cervix

Whose fetus started giving birth, where have you been?

Description : If you weren't home, was it really bad? What did people say?

Last Answer : I just paid in front of a Tesco self-service. I was a little desperate because it spilled so much that it got on the floor as well. It was summer, I was just wearing a skirt. The seller was very ... guards escorted me to my car. I was told not to worry about the water and then wipe the cleaner.

What is a birth called which the rear portion of a fetus is presented first?

Description : What is a birth called which the rear portion of a fetus is presented first?

Last Answer : Breech

Mr. Sharma decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?

Description : Mr. Sharma decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only ... time he steps off the last step at the bottom, find out the height of the stair way in steps?

Last Answer : Answer: 46 steps.

As a follow up to the other question, why do some of you deem a fetus “human” before it is viable extra-utero?

Description : As a follow up to the other question, why do some of you deem a fetus “human” before it is viable extra-utero?

Last Answer : Because they’ve inherited the language of a bad argument. The question of whether or not a fetus is biologically human has nothing to do with whether or not it counts as a moral person.

Give reasons for the following (i)The human testes are located outside the abdominal cavity. (ii)Some organisms like honeybees are called parthenogenetic animals -Biology

Description : Give reasons for the following (i)The human testes are located outside the abdominal cavity. (ii)Some organisms like honeybees are called parthenogenetic animals -Biology

Last Answer : Testes are located outside the abdominal cavity within a pouch called scrotum. Scrotum maintains low temperature of the testes (2-2.5°C lower than normal body temp­erature) ... from unfertilised diploid eggs (and do not undergo fertilisation) they are called parthenogenetic animals.

$ The reproductive cells in the testes are called spermatocytes. ! Labia majora is a part of the external genitalia of human females.

Description : $ The reproductive cells in the testes are called spermatocytes. ! Labia majora is a part of the external genitalia of human females.

Last Answer : $ The reproductive cells in the testes are called spermatocytes. ! Labia majora is a part of the external ... wrong D. If both As and R are wrong.

If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from (a) testes to epididymis (b) epididymis to vas deferens (c) ovary to uterus (d) vagina to uterus.

Description : If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from (a) testes to epididymis (b) epididymis to vas deferens (c) ovary to uterus (d) vagina to uterus.

Last Answer : (a) testes to epididymis

Which of the following statement about reproductions in human is correct. a) fertilisation takes place externally b) fertilisation takes place in the testes c) during fertilisation egg moves towards sperm d) fertilisation takes place in human female

Description : Which of the following statement about reproductions in human is correct. a) fertilisation takes place externally b) fertilisation takes place in the testes c) during fertilisation egg moves towards sperm d) fertilisation takes place in human female

Last Answer : d) fertilisation takes place in human female

If a human fertilized egg/fetus had the same legal rights as a person, should employing a pregnant woman be illegal?

Description : If a human fertilized egg/fetus had the same legal rights as a person, should employing a pregnant woman be illegal?

Last Answer : answer:I think the people who would grant an embryo legal status would probably agree with you. They don't like women, much less pregnant women, working. You can also say the embryo is entitled ... the people that would propose this. This is what happens when poor thinking tries to impose itself.

Embryo and fetus: tissue or unborn human?

Description : Embryo and fetus: tissue or unborn human?

Last Answer : Flamebait.

Which one of the following is categorised as a parasite in true sense? (a) The female Anopheles bites and sucks blood from humans. (b) Human fetus developing inside the uterus draws nourishment from the mother. (c) Head louse living on the human scalp as well as laying eggs on human hair. (d) The cuckoo (koel) lays its eggs in crow’s nest.

Description : Which one of the following is categorised as a parasite in true sense? (a) The female Anopheles bites and sucks blood from humans. (b) Human fetus developing inside the uterus draws nourishment from the mother. ... as laying eggs on human hair. (d) The cuckoo (koel) lays its eggs in crow's nest.

Last Answer : (c) Head louse living on the human scalp as well as laying eggs on human hair

Sex is determined in human beings (a) by ovum (b) at time of fertilisation (c) 40 days after fertilisation (d) seventh to eight week when genitals differentiate in fetus.

Description : Sex is determined in human beings (a) by ovum (b) at time of fertilisation (c) 40 days after fertilisation (d) seventh to eight week when genitals differentiate in fetus.

Last Answer : (b) at time of fertilisation

Fetal ejection reflex in human female is induced by (a) release of oxytocin from pituitary (b) fully developed fetus and placenta (c) differentiation of mammary glands (d) pressure exerted by amniotic fluid.

Description : Fetal ejection reflex in human female is induced by (a) release of oxytocin from pituitary (b) fully developed fetus and placenta (c) differentiation of mammary glands (d) pressure exerted by amniotic fluid.

Last Answer : (b) fully developed fetus and placenta

The haemoglobin of a human fetus (a) has only 2 protein subunits instead of 4 (b) has a higher affinity for oxygen than that of an adult (c) has a lower affinity for oxygen than that of the adult (d) its affinity for oxygen is the same as that of an adult.

Description : The haemoglobin of a human fetus (a) has only 2 protein subunits instead of 4 (b) has a higher affinity for oxygen than that of an adult (c) has a lower affinity for oxygen than that of the adult (d) its affinity for oxygen is the same as that of an adult.

Last Answer : (b) has a higher affinity for oxygen than that of an adult

What does it matter what ancestry a person might be, when we ALL descend from the primordial soup?

Description : What does it matter what ancestry a person might be, when we ALL descend from the primordial soup?

Last Answer : It shouldn't matter at all. Why does it matter for some people? Some people simply have pride in their ancestors for various reasons. Others feel a kinship with things in common. It's human to ... me, the safer and happier people are and feel, the less they think about putting people into groups.

I descend and ascend. If you go too fast, you can trip on me but if you go too slow, your destination seems like miles away. What am I? -Riddles

Description : I descend and ascend. If you go too fast, you can trip on me but if you go too slow, your destination seems like miles away. What am I? -Riddles

Last Answer : Stairs.

What is Descend as ascend is to height?

Description : What is Descend as ascend is to height?

Last Answer : Width

What does Descend mean ?

Last Answer : Descend means to land.

How does temperature and pressure changes as you descend in the ocean?

Description : How does temperature and pressure changes as you descend in the ocean?

Last Answer : Need answer

What is the analogy for if ascend is to height what is to descend?

Description : What is the analogy for if ascend is to height what is to descend?

Last Answer : Depth.To ascend is to go up, and to descend is go down. We measure the height of things above the ground and the depth of things below the ground.

How do temperature and pressure change as you descend into the ocean?

Description : How do temperature and pressure change as you descend into the ocean?

Last Answer : Feel Free to Answer

The fluid property which matters for falling rain drops to acquire spherical shape is its (A) Pressure (B) Height of descend (C) Viscosity (D) Surface tension

Description : The fluid property which matters for falling rain drops to acquire spherical shape is its (A) Pressure (B) Height of descend (C) Viscosity (D) Surface tension

Last Answer : (D) Surface tension

From a pre-flight briefing you know a jet stream is at 31,000ft whilst you are at FL270. You experience moderate CAT. What would be the best course of action? a. Stay level b. Descend c. Climb d. Reduce speed

Description : From a pre-flight briefing you know a jet stream is at 31,000ft whilst you are at FL270. You  experience moderate CAT. What would be the best course of action?  a. Stay level  b. Descend  c. Climb  d. Reduce speed

Last Answer : b. Descend 

If, having tried all normal methods, the ears cannot be cleared in flight, the following action should be taken: a. Ignore and it will go away b. Descend to 10,000ft or MSA – whichever is higher c. Seek medical advice as soon as possible d. Descend as quickly as possible to minimize pain

Description : If, having tried all normal methods, the ears cannot be cleared in flight, the following action should be taken: a. Ignore and it will go away b. Descend to 10,000ft or MSA – whichever is higher c. Seek medical advice as soon as possible d. Descend as quickly as possible to minimize pain

Last Answer : c. Seek medical advice as soon as possible

A pilot suffering from decompression sickness should: a. Descend to a lower level where the symptoms will disappear and continue the flight at this or a lower level b. Decrease the cabin pressure to relieve the symptoms c. Continue the flight at a lower altitude and carry out exercises to relieve the pain in the affected site d. Land as soon as possible and seek medical assistance

Description : A pilot suffering from decompression sickness should: a. Descend to a lower level where the symptoms will disappear and continue the flight at this or a lower level b. Decrease the cabin pressure ... relieve the pain in the affected site d. Land as soon as possible and seek medical assistance

Last Answer : d. Land as soon as possible and seek medical assistance

What action should be taken if contact is lost with the runway during a circling approach? a. Descend to Decision Height and if still no contact with the runway, initiate a missed approach b. Land on the instrument runway c. Initiate a missed approach d. Return to the FAF

Description : What action should be taken if contact is lost with the runway during a circling approach? a. Descend to Decision Height and if still no contact with the runway, initiate a missed approach b. Land on the instrument runway c. Initiate a missed approach d. Return to the FAF

Last Answer : c. Initiate a missed approach

An aircraft is allowed to descend below the MSA if: a. The pilot follows the published approach procedures b. The aircraft receives radar vectors c. The pilot has visual contact with the runway and surrounding terrain and is able to maintain visual contact d. All of the above

Description : An aircraft is allowed to descend below the MSA if: a. The pilot follows the published approach procedures b. The aircraft receives radar vectors c. The pilot has visual contact with the runway and surrounding terrain and is able to maintain visual contact d. All of the above

Last Answer : d. All of the above

In the event of an act of unlawful interference, which of the following is the correct procedure to be taken by the pilot in command? a. Squawk 7700 if the situation requires and continue the flight as per the ATC clearance received if possible b. Squawk 7500 and broadcast a warning to ATC other traffic on 121.500MHz or the frequency in use whilst maintaining the flight as cleared c. Squawk 7500 (or 7700 if required) and broadcast a warning if the situation forces deviation from the cleared flight plan d. If forced to deviate from the flight plan, climb or descend to altitudes that differ from the normal cruising altitudes by 1000ft

Description : In the event of an act of unlawful interference, which of the following is the correct procedure to be taken by the pilot in command? a. Squawk 7700 if the situation requires and continue ... the flight plan, climb or descend to altitudes that differ from the normal cruising altitudes by 1000ft

Last Answer : c. Squawk 7500 (or 7700 if required) and broadcast a warning if the situation forces deviation from the cleared flight plan

From a pre-flight briefing you know a jet stream is at 31,000ft whilst you are at FL270. You experience moderate CAT. What would be the best course of action? a. Stay level b. Descend c. Climb d. Reduce speed

Description : From a pre-flight briefing you know a jet stream is at 31,000ft whilst you are at FL270. You experience moderate CAT. What would be the best course of action? a. Stay level b. Descend c. Climb d. Reduce speed

Last Answer : b. Descend

If, having tried all normal methods, the ears cannot be cleared in flight, the following action should be taken: a. Ignore and it will go away b. Descend to 10,000ft or MSA – whichever is higher c. Seek medical advice as soon as possible d. Descend as quickly as possible to minimize pain

Description : If, having tried all normal methods, the ears cannot be cleared in flight, the following action should be taken: a. Ignore and it will go away b. Descend to 10,000ft or MSA – whichever is higher c. Seek medical advice as soon as possible d. Descend as quickly as possible to minimize pain

Last Answer : c. Seek medical advice as soon as possible

A pilot suffering from decompression sickness should: a. Descend to a lower level where the symptoms will disappear and continue the flight at this or a lower level b. Decrease the cabin pressure to relieve the symptoms c. Continue the flight at a lower altitude and carry out exercises to relieve the pain in the affected site d. Land as soon as possible and seek medical assistance

Description : A pilot suffering from decompression sickness should: a. Descend to a lower level where the symptoms will disappear and continue the flight at this or a lower level b. Decrease the cabin pressure ... the pain in the affected site d. Land as soon as possible and seek medical assistance

Last Answer : d. Land as soon as possible and seek medical assistance

What action should be taken if contact is lost with the runway during a circling approach? a. Descend to Decision Height and if still no contact with the runway, initiate a missed approach b. Land on the instrument runway c. Initiate a missed approach d. Return to the FAF

Description : What action should be taken if contact is lost with the runway during a circling approach? a. Descend to Decision Height and if still no contact with the runway, initiate a missed approach b. Land on the instrument runway c. Initiate a missed approach d. Return to the FAF

Last Answer : c. Initiate a missed approach

An aircraft is allowed to descend below the MSA if: a. The pilot follows the published approach procedures b. The aircraft receives radar vectors c. The pilot has visual contact with the runway and surrounding terrain and is able to maintain visual contact d. All of the above

Description : An aircraft is allowed to descend below the MSA if: a. The pilot follows the published approach procedures b. The aircraft receives radar vectors c. The pilot has visual contact with the runway and surrounding terrain and is able to maintain visual contact d. All of the above

Last Answer : d. All of the above

The cloudy nights are warmer compared to clear nights (without clouds) during winter days. This is because: (A) clouds radiate heat towards the earth (B) clouds prevent cold wave from the sky, descend on earth (C) clouds prevent escaping of the heat radiation from the earth (D) clouds being at great heights from earth absorb heat from the sun and send towards the earth

Description : The cloudy nights are warmer compared to clear nights (without clouds) during winter days. This is because: (A) clouds radiate heat towards the earth (B) clouds prevent cold wave from the sky, ... (D) clouds being at great heights from earth absorb heat from the sun and send towards the earth

Last Answer : (C) clouds prevent escaping of the heat radiation from the earth

Does the left testes always hang lower than the right?

Description : Does the left testes always hang lower than the right?

Last Answer : answer:It completely depends upon which side of your brain is more dominant. For the small percentage of males that have an equally left and right brain dominance, their testicles are the same length. ... size or length or anything of a person's private bits. Cleanliness and health are what matters.

What are the hormones secreted by Gonads (Testes, Ovaries)? -Biology

Description : What are the hormones secreted by Gonads (Testes, Ovaries)? -Biology

Last Answer : answer:

Testes are internal and canines are premolar are absent in one of the following ?

Description : Testes are internal and canines are premolar are absent in one of the following ?

Last Answer : Testes are internal and canines are premolar are absent in one of the following ? A. Rabbit B. Elephant C. Whale D. Goat

Testes are extra abdominal in position. Which of the following is the must appropriste reason

Description : Testes are extra abdominal in position. Which of the following is the must appropriste reason

Last Answer : Testes are extra abdominal in position. Which of the following is the must appropriste reason A. ... @)C` lower than the normal body temperature.

Cryptorhidism is a condition of testes

Description : Cryptorhidism is a condition of testes

Last Answer : Cryptorhidism is a condition of testes A. Unable to descend in scrotal sacs B. Unable to ... been surgically removed D. Having remained undeveloped.