Conversion of testosterone to dihydrotestosterone by the enzyme 5α-reductase is required for the following actions except: A. Formation of male external genitalia in the foetus B. Prostatic hypertrophy in elderly males C. Pubertal changes in the male adolescent D. Spermatogenesis

Conversion of testosterone to dihydrotestosterone
by the enzyme 5α-reductase is required for the
following actions except:
A. Formation of male external genitalia in the
foetus
B. Prostatic hypertrophy in elderly males
C. Pubertal changes in the male adolescent
D. Spermatogenesis
by

1 Answer

Answer :

D. Spermatogenesis
by

Related questions

Which of the following is a steroid 5α-reductase inhibitor that has been found useful in benign prostatic hypertrophy and male pattern baldness: A. Flutamide B. Finasteride C. Prazosin D. Minoxidil

Description : Which of the following is a steroid 5α-reductase inhibitor that has been found useful in benign prostatic hypertrophy and male pattern baldness: A. Flutamide B. Finasteride C. Prazosin D. Minoxidil

Last Answer : B. Finasteride

he following is true of nifedipine except: A. It can aggravate urine voiding difficulty in elderly males with prostatic hypertrophy B. It promotes Na+ retention by a renal tubular action to cause ankle oedema as side effect C. It can inhibit insulin release from pancreas D. At high doses it can paradoxically increase the frequency of angina pectori

Description : he following is true of nifedipine except: A. It can aggravate urine voiding difficulty in elderly males with prostatic hypertrophy B. It promotes Na+ retention by a renal tubular action to ... release from pancreas D. At high doses it can paradoxically increase the frequency of angina pectori

Last Answer : B. It promotes Na+ retention by a renal tubular action to cause ankle oedema as side effect

The following drug has been found to improve urine flow in elderly males with benign prostatic hypertrophy: A. Nifedipine B. Prazosin C. Disopyramide D. Imipramine

Description : The following drug has been found to improve urine flow in elderly males with benign prostatic hypertrophy: A. Nifedipine B. Prazosin C. Disopyramide D. Imipramine

Last Answer : B. Prazosin

Finasteride acts by: A. Blocking testosterone receptors in the prostate gland B. Reducing testosterone secretion from testes C. Reducing LH secretion from pituitary D. Lowering circulating as well as prostatic dihydrotestosterone concentration

Description : Finasteride acts by: A. Blocking testosterone receptors in the prostate gland B. Reducing testosterone secretion from testes C. Reducing LH secretion from pituitary D. Lowering circulating as well as prostatic dihydrotestosterone concentration

Last Answer : D. Lowering circulating as well as prostatic dihydrotestosterone concentration

Prazosin is an effective antihypertensive while nonselective α adrenergic blockers are not because: A. It is the only orally active α blocker B. It improves plasma lipid profile C. It does not concurrently enhance noradrenaline release D. It improves urine flow in males with prostatic hypertrophy

Description : Prazosin is an effective antihypertensive while nonselective α adrenergic blockers are not because: A. It is the only orally active α blocker B. It improves plasma lipid profile C. It does not concurrently enhance noradrenaline release D. It improves urine flow in males with prostatic hypertrophy

Last Answer : C. It does not concurrently enhance noradrenaline release

Prazosin is an effective antihypertensive while nonselective α adrenergic blockers are not because: A. It is the only orally active α blocker B. It improves plasma lipid profile C. It does not concurrently enhance noradrenaline release D. It improves urine flow in males with prostatic hypertrophy

Description : Prazosin is an effective antihypertensive while nonselective α adrenergic blockers are not because: A. It is the only orally active α blocker B. It improves plasma lipid profile C. It does not concurrently enhance noradrenaline release D. It improves urine flow in males with prostatic hypertrophy

Last Answer : C. It does not concurrently enhance noradrenaline release

In patients with benign prostatic hypertrophy, finasteride exerts the following action/actions: A. Reduces size of the prostate gland B. Increases peak urinary flow rate C. Relaxes vesical sphincter D. Both 'A' and 'B' are correct

Description : In patients with benign prostatic hypertrophy, finasteride exerts the following action/actions: A. Reduces size of the prostate gland B. Increases peak urinary flow rate C. Relaxes vesical sphincter D. Both 'A' and 'B' are correct

Last Answer : D. Both 'A' and 'B' are correct

For the treatment of hypogonadism and impotence, testosterone/dihydrotestosterone can be administered by the following route/routes: A. Oral B. Intramuscular C. Transdermal D. Both 'B' and 'C

Description : For the treatment of hypogonadism and impotence, testosterone/dihydrotestosterone can be administered by the following route/routes: A. Oral B. Intramuscular C. Transdermal D. Both 'B' and 'C

Last Answer : D. Both 'B' and 'C'

Prazosin is an effective antihypertensive while nonselective a adrenergic blockers are not because (a) It is the only orally active a blocker (b) It improves plasma lipid profile (c) It does not concurrently enhance noradrenaline release (d) It improves urine flow in males with prostatic hypertrophy

Description : Prazosin is an effective antihypertensive while nonselective a adrenergic blockers are not because (a) It is the only orally active a blocker (b) It improves plasma lipid profile (c) It does not concurrently enhance noradrenaline release (d) It improves urine flow in males with prostatic hypertrophy

Last Answer : Ans: C

Select the drug which can improve urinary flow rate in benign prostatic hypertrophy without affecting prostate size: A. Amphetamine B. Prazosin C. Finasteride D. Goserelin

Description : Select the drug which can improve urinary flow rate in benign prostatic hypertrophy without affecting prostate size: A. Amphetamine B. Prazosin C. Finasteride D. Goserelin

Last Answer : B. Prazosin

Select the drug which can improve urinary flow rate in benign prostatic hypertrophy without affecting prostate size: A. Amphetamine B. Prazosin C. Finasteride D. Goserelin

Description : Select the drug which can improve urinary flow rate in benign prostatic hypertrophy without affecting prostate size: A. Amphetamine B. Prazosin C. Finasteride D. Goserelin

Last Answer : B. Prazosin

Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trappin

Description : Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trappin

Last Answer : B. Inhibits proteolysis of thyroglobulin

16.18 Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trapping

Description : 16.18 Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trapping

Last Answer : B. Inhibits proteolysis of thyroglobulin

Choose the correct statement about latanoprost: A. It is a PGF2α derivative used in glaucoma B. It is a selective α1 blocker used in benign hypertrophy of prostate C. It is a 5-α-reductase inhibitor used to reduce the size of enlarged prostate gland D. It is a PGE2 analogue used intravaginally for cervical priming

Description : Choose the correct statement about latanoprost: A. It is a PGF2α derivative used in glaucoma B. It is a selective α1 blocker used in benign hypertrophy of prostate C. It is a 5-α- ... reduce the size of enlarged prostate gland D. It is a PGE2 analogue used intravaginally for cervical priming

Last Answer : A. It is a PGF2α derivative used in glaucoma

Choose the correct statement about latanoprost: A. It is a PGF2α derivative used in glaucoma B. It is a selective α1 blocker used in benign hypertrophy of prostate C. It is a 5-α-reductase inhibitor used to reduce the size of enlarged prostate gland D. It is a PGE2 analogue used intravaginally for cervical priming

Description : Choose the correct statement about latanoprost: A. It is a PGF2α derivative used in glaucoma B. It is a selective α1 blocker used in benign hypertrophy of prostate C. It is a 5-α- ... reduce the size of enlarged prostate gland D. It is a PGE2 analogue used intravaginally for cervical priming

Last Answer : A. It is a PGF2α derivative used in glaucoma

Testosterone therapy started in a boy of 8 years and continued till puberty is likely to: A. Increase adult stature B. Reduce adult stature C. Have no effect on adult stature D. Cause hypertrophy of penis

Description : Testosterone therapy started in a boy of 8 years and continued till puberty is likely to: A. Increase adult stature B. Reduce adult stature C. Have no effect on adult stature D. Cause hypertrophy of penis

Last Answer : B. Reduce adult stature

Prolonged testosterone therapy can cause: A. Hypertrophy of seminiferous tubules of testes B. Hypertrophy of interstitial cells of testes C. Atrophy of interstitial cells of testes D. Both ‘A’ and ‘B’ are correct

Description : Prolonged testosterone therapy can cause: A. Hypertrophy of seminiferous tubules of testes B. Hypertrophy of interstitial cells of testes C. Atrophy of interstitial cells of testes D. Both ‘A’ and ‘B’ are correct

Last Answer : C. Atrophy of interstitial cells of testes

An androgen which is more powerful than testosterone is (A) Androstenedione (B) Dihydrotestosterone (C) Androsterone (D) Epiandrosterone

Description : An androgen which is more powerful than testosterone is (A) Androstenedione (B) Dihydrotestosterone (C) Androsterone (D) Epiandrosterone

Last Answer : Answer : B

The obstructive and irritative symptom complex caused by benign prostatic hypertrophy is termed a) prostatism. Symptoms of prostatism include increased frequency of urination, nocturia, urgency, dribbling, and a sensation that the bladder has not completely emptied.

Description : The obstructive and irritative symptom complex caused by benign prostatic hypertrophy is termed a) prostatism. Symptoms of prostatism include increased frequency of urination, nocturia, urgency, dribbling, ... . d) prostatectomy. Prostatectomy refers to the surgical removal of the prostate gland.

Last Answer : a) prostatism. Symptoms of prostatism include increased frequency of urination, nocturia, urgency, dribbling, and a sensation that the bladder has not completely emptied.

The following disease is worsened by propranolol: A. Glaucoma B. Raynaud’s disease C. Benign prostatic hypertrophy D. Parkinsonism

Description : The following disease is worsened by propranolol: A. Glaucoma B. Raynaud’s disease C. Benign prostatic hypertrophy D. Parkinsonism

Last Answer : B. Raynaud’s disease

Which of the following is a selective α1A receptor blocker that affords symptomatic relief in benign prostatic hypertrophy without producing significant fall in blood pressure: A. Terazosin B. Doxazosin C. Trimazosin D. Tamsulosin

Description : Which of the following is a selective α1A receptor blocker that affords symptomatic relief in benign prostatic hypertrophy without producing significant fall in blood pressure: A. Terazosin B. Doxazosin C. Trimazosin D. Tamsulosin

Last Answer : D. Tamsulosin

The following disease is worsened by propranolol: A. Glaucoma B. Raynaud’s disease C. Benign prostatic hypertrophy D. Parkinsonism

Description : The following disease is worsened by propranolol: A. Glaucoma B. Raynaud’s disease C. Benign prostatic hypertrophy D. Parkinsonism

Last Answer : B. Raynaud’s disease

Which of the following is a selective α 1A receptor blocker that affords symptomatic relief in benign prostatic hypertrophy without producing significant fall in blood pressure: A. Terazosin B. Doxazosin C. Trimazosin D. Tamsulosin

Description : Which of the following is a selective α 1A receptor blocker that affords symptomatic relief in benign prostatic hypertrophy without producing significant fall in blood pressure: A. Terazosin B. Doxazosin C. Trimazosin D. Tamsulosin

Last Answer : D. Tamsulosin

Match column I with column II and select the correct option using the given codes. Column I Column II A. Mons pubis (i) Embryo formation B. Antrum (ii) Sperm C. Trophectoderm (iii)Female external genitalia D. Nebenkern (iv) Graafian follicle (a) A-(iii), B-(iv), C-(ii), D-(i) (b) A-(iii), B-(iv), C-(i), D-(ii) (c) A-(iii), B-(i), C-(iv), D-(ii) (d) A-(i), B-(iv), C-(iii), D-(ii

Description : Match column I with column II and select the correct option using the given codes. Column I Column II A. Mons pubis (i) Embryo formation B. Antrum (ii) Sperm C. Trophectoderm (iii)Female external genitalia D. Nebenkern (iv) Graafian ... (i), C-(iv), D-(ii) (d) A-(i), B-(iv), C-(iii), D-(ii

Last Answer : (b) A-(iii), B-(iv), C-(i), D-(ii)

A 70-year-old man has severe urinary hesitancy associated with benign prostatic hyperplasia. He has tried alpha blockers with little relief. His physician recommends a drug that blocks 5a - reductase in the prostate and writes a prescription for (a) Atropine (b) Clonidine (c) Hydralazine (d) Neostigmine (e) Propranolol

Description : A 70-year-old man has severe urinary hesitancy associated with benign prostatic hyperplasia. He has tried alpha blockers with little relief. His physician recommends a drug that blocks 5a - reductase in ... prescription for (a) Atropine (b) Clonidine (c) Hydralazine (d) Neostigmine (e) Propranolol

Last Answer : Ans: B

Actions of chlorpromazine include the following except: A. Indifference to external stimuli B. Postural hypotension C. Hypoprolactinemia D. Hypothermia in cold surroundings

Description : Actions of chlorpromazine include the following except: A. Indifference to external stimuli B. Postural hypotension C. Hypoprolactinemia D. Hypothermia in cold surroundings

Last Answer : C. Hypoprolactinemia

Trimethoprim inhibits bacteria without affecting mammalian cells because: A. It does not penetrate mammalian cells B. It has high affinity for bacterial but low affinity for mammalian dihydrofolate reductase enzyme C. It inhibits bacterial folate synthetase as well as dihydrofolate reductase enzymes D. All of the above

Description : Trimethoprim inhibits bacteria without affecting mammalian cells because: A. It does not penetrate mammalian cells B. It has high affinity for bacterial but low affinity for mammalian dihydrofolate ... bacterial folate synthetase as well as dihydrofolate reductase enzymes D. All of the above

Last Answer : B. It has high affinity for bacterial but low affinity for mammalian dihydrofolate reductase enzyme

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

Conversion of deoxyuridine monophosphate to thymidine monophosphate is catalysed by the enzyme: (A) Ribonucleotide reductase (B) Thymidylate synthetase (C) CTP synthetase (D) Orotidylic acid decarboxylase

Description : Conversion of deoxyuridine monophosphate to thymidine monophosphate is catalysed by the enzyme: (A) Ribonucleotide reductase (B) Thymidylate synthetase (C) CTP synthetase (D) Orotidylic acid decarboxylase

Last Answer : Answer : B

Conversion of fructose to sorbitol is catalysed by the enzyme: (A) Sorbitol dehydrogenase (B) Aldose reductase (C) Fructokinase (D) Hexokinase

Description : Conversion of fructose to sorbitol is catalysed by the enzyme: (A) Sorbitol dehydrogenase (B) Aldose reductase (C) Fructokinase (D) Hexokinase

Last Answer : Answer : A

Parenteral testosterone therapy in a boy can cause the following adverse effects except: A. Gynaecomastia B. Acne C. Cholestatic jaundice D. Precocious puberty

Description : Parenteral testosterone therapy in a boy can cause the following adverse effects except: A. Gynaecomastia B. Acne C. Cholestatic jaundice D. Precocious puberty

Last Answer : C. Cholestatic jaundice

Prophylactic use of antibiotics is not justified in the following condition: A. To prevent secondary infection in common cold B. Thoroughly cleaned contaminated wound C. Rheumatic fever in a child of 10 years D. Catheterization of urethra in an elderly male

Description : Prophylactic use of antibiotics is not justified in the following condition: A. To prevent secondary infection in common cold B. Thoroughly cleaned contaminated wound C. Rheumatic fever in a child of 10 years D. Catheterization of urethra in an elderly male

Last Answer : A. To prevent secondary infection in common cold

Thiazide diuretics are the preferred first line antihypertensives for the following category of patients: A. Young hypertensives B. Physically and sexually active male hypertensives C. Elderly obese hypertensives D. Diabetic hypertensives

Description : Thiazide diuretics are the preferred first line antihypertensives for the following category of patients: A. Young hypertensives B. Physically and sexually active male hypertensives C. Elderly obese hypertensives D. Diabetic hypertensives

Last Answer : C. Elderly obese hypertensives

Use of morphine in the following category of patients does not carry any special risk: A. Ischaemic heart disease patients B. Bronchial asthma patients C. Elderly male patients D. Biliary colic patients

Description : Use of morphine in the following category of patients does not carry any special risk: A. Ischaemic heart disease patients B. Bronchial asthma patients C. Elderly male patients D. Biliary colic patients

Last Answer : A. Ischaemic heart disease patients

Conversion of uridine diphosphate into deoxyuridine diphosphate requires all the following except (A) Ribonucleotide reductase (B) Thioredoxin (C) Tetrahydrobiopterin (D) NADPH

Description : Conversion of uridine diphosphate into deoxyuridine diphosphate requires all the following except (A) Ribonucleotide reductase (B) Thioredoxin (C) Tetrahydrobiopterin (D) NADPH

Last Answer : Answer : C

Conversion of testosterone to estradiol requires the enzyme: (A) Aromatase (B) Dehydrogenase (C) Lyase (D) Isomerase HORMONE METABOLISM 215

Description : Conversion of testosterone to estradiol requires the enzyme: (A) Aromatase (B) Dehydrogenase (C) Lyase (D) Isomerase HORMONE METABOLISM 215

Last Answer : Answer : A

The enzyme catalyzing conversion of androstenedione to testosterone is a (A) Oxygenase (B) Dehydrogenase (C) Isomerase (D) Decarboxylase

Description : The enzyme catalyzing conversion of androstenedione to testosterone is a (A) Oxygenase (B) Dehydrogenase (C) Isomerase (D) Decarboxylase

Last Answer : Answer : B

Gonadotropins are indicated in the following conditions except: A. Hypogonadotrophic hypogonadism in males B. Cryptorchism in a boy less than 7 years old C. Amenorrhoea and infertility in women D. Polycystic ovaries

Description : Gonadotropins are indicated in the following conditions except: A. Hypogonadotrophic hypogonadism in males B. Cryptorchism in a boy less than 7 years old C. Amenorrhoea and infertility in women D. Polycystic ovaries

Last Answer : D. Polycystic ovaries

16.16 Gonadotropins are indicated in the following conditions except: A. Hypogonadotrophic hypogonadism in males B. Cryptorchism in a boy less than 7 years old C. Amenorrhoea and infertility in women D. Polycystic ovaries

Description : 16.16 Gonadotropins are indicated in the following conditions except: A. Hypogonadotrophic hypogonadism in males B. Cryptorchism in a boy less than 7 years old C. Amenorrhoea and infertility in women D. Polycystic ovaries

Last Answer : D. Polycystic ovaries

WHEN DO THE OOGENESIS AND THE SPERMATOGENESIS INITIATE IN HUMAN FEMALES AND MALES RESPECTIVELY ?

Description : WHEN DO THE OOGENESIS AND THE SPERMATOGENESIS INITIATE IN HUMAN FEMALES AND MALES RESPECTIVELY ?

Last Answer : ANS. OOGENESIS AT THE FOETAL LIFEAND SPERMATOGENISIS STARTS AT PUBERTY.

The bladder trigone and prostatic muscles are relaxed by: A. Adrenergic α1 agonists B. Adrenergic α1 antagonists C. Adrenergic α2 agonists D. Adrenergic α2 antagonists

Description : The bladder trigone and prostatic muscles are relaxed by: A. Adrenergic α1 agonists B. Adrenergic α1 antagonists C. Adrenergic α2 agonists D. Adrenergic α2 antagonists

Last Answer : B. Adrenergic α1 antagonists

ndications of piracetam include the following except: A. Apnoea in preterm infant B. Learning defects in children C. Confusional states in the elderly D. Memory impairment following electroconvulsive therapy

Description : ndications of piracetam include the following except: A. Apnoea in preterm infant B. Learning defects in children C. Confusional states in the elderly D. Memory impairment following electroconvulsive therapy

Last Answer : A. Apnoea in preterm infant

What do you call male and female genitalia?

Description : What do you call male and female genitalia?

Last Answer : Me first!! Hmm ha is va jay jay Hoho is Wang

Low concentration of bupivacaine is preferred for spinal / epidural obstetric analgesia because: A. It has a longer duration of action B. It can produce sensory blockade without paralysing abdominal muscles C. It distributes more in maternal tissues so that less reaches the foetus D. All of the above are correct

Description : Low concentration of bupivacaine is preferred for spinal / epidural obstetric analgesia because: A. It has a longer duration of action B. It can produce sensory blockade without paralysing abdominal muscles C. ... in maternal tissues so that less reaches the foetus D. All of the above are correct

Last Answer : D. All of the above are correct

Which group represents external genitalia of human female ?

Description : Which group represents external genitalia of human female ?

Last Answer : Which group represents external genitalia of human female ? A. Labium minors, labium majora,oviduct B. ... . Lebium minors, labium majora, ciloris. D.

$ 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.

An enzyme required for the synthesis of ketone bodies as well as cholesterol is (A) Acetyl CoA carboxylase (B) HMG CoA synthetase (C) HMG CoA reductase (D) HMG CoA lyase

Description : An enzyme required for the synthesis of ketone bodies as well as cholesterol is (A) Acetyl CoA carboxylase (B) HMG CoA synthetase (C) HMG CoA reductase (D) HMG CoA lyase

Last Answer : Answer : B

Choose the correct statement about long acting calcium channel blocking drugs as antihypertensives: A. They are the most effective drugs in suppressing hypertensive left ventricular hypertrophy B. They are as effective as diuretics or β blockers in reducing cardiovascular/total mortality C. They compromise quality of life more than β blockers D. They have no beneficial effect in hypertensive/diabetic nephropath

Description : Choose the correct statement about long acting calcium channel blocking drugs as antihypertensives: A. They are the most effective drugs in suppressing hypertensive left ventricular hypertrophy B. They ... more than β blockers D. They have no beneficial effect in hypertensive/diabetic nephropath

Last Answer : B. They are as effective as diuretics or β blockers in reducing cardiovascular/total mortality

Angiotensin II plays a key role in the following risk factor for ischaemic heart disease: A. Hypercholesterolemia B. Ventricular hypertrophy C. Carbohydrate intolerance D. Cardiac arrhythmia

Description : Angiotensin II plays a key role in the following risk factor for ischaemic heart disease: A. Hypercholesterolemia B. Ventricular hypertrophy C. Carbohydrate intolerance D. Cardiac arrhythmia

Last Answer : B. Ventricular hypertrophy

Select the drug which affords faster and greater symptomatic relief in benign hypertrophy of prostate: A. Terazosin B. Desmopressin C. Finasteride D. Sildenafi

Description : Select the drug which affords faster and greater symptomatic relief in benign hypertrophy of prostate: A. Terazosin B. Desmopressin C. Finasteride D. Sildenafi

Last Answer : A. Terazosin