NEET
Corpus luteum is- a)Outer part of the brain
- b)Tissue joining two cerebral hemispheres
- c)Remnant of the follicle in the ovary
- d)Tissue in testes to produce testosterone E Inner part of the brain
Correct answer is option 'C'. Can you explain this answer?
Corpus luteum is
a)
Outer part of the brain
b)
Tissue joining two cerebral hemispheres
c)
Remnant of the follicle in the ovary
d)
Tissue in testes to produce testosterone E Inner part of the brain
Lonely answered • 5 hours agoThe corpus luteum (plural: corpora lutea) is a temporary endocrine structure involved in ovulation and early pregnancy. ... The remnants of the follicle after ovulation is referred to as the corpus luteum and ranges from 2-5 cm in diameter but involutes as it matures.
In tracing the path of sperm, you would mention vasa deferentia before- a)Testes
- b)Epididymis
- c)Urethra
- d)Uterus
Correct answer is option 'C'. Can you explain this answer?
In tracing the path of sperm, you would mention vasa deferentia before
a)
Testes
b)
Epididymis
c)
Urethra
d)
Uterus
Lonely answered • 5 hours agoThe key male reproductive organs include the testes, epididymis, urethra, vas deferens, prostate gland, seminal vesicle, and penis. The ejaculation process begins as the penis fills with blood and becomes erect. With sufficient stimulation, mature sperm travels from the epididymis through the vas deferens, a muscular tube, which propels sperm forward through smooth muscle contractions. From the am... more
Srishti asked • 1 hour agoThe mean radius of earth is R, its angular speed on its own axis is ω and the acceleration due to gravity at earth's surface is g. What will be the radius of the orbit of a geostationary satellite ? [1992]- a)( R2g/ω2)1/3
- b)( Rg/ω2)1/3
- c)( R2ω2/g)1/3
- d)( R 2g /ω)1/3
Correct answer is option 'A'. Can you explain this answer?
The mean radius of earth is R, its angular speed on its own axis is ω and the acceleration due to gravity at earth's surface is g. What will be the radius of the orbit of a geostationary satellite ? [1992]
a)
( R2g/ω2)1/3
b)
( Rg/ω2)1/3
c)
( R2ω2/g)1/3
d)
( R 2g /ω)1/3
Which of the following compounds will react with two moles of 
?- a)
- b)
- c)
- d)
Correct answer is option 'C'. Can you explain this answer?
Which of the following compounds will react with ?
two moles of
?a)
b)
c)
d)
Lonely answered • 5 hours agoReaction of carboxylic acid with Grignard is shown above. It'll only consume 1 mole of CH3​MgBr.
CH3​C≡CCH3​ won't react with Grignard reagent because it doesn't have active H-atom.
In HC≡C−CH2​OH two active hydrogen atoms are present, hence it will react with two moles of CH3​MgBr (Grignard reagent) as shown below.
HC≡C−CH2​OH+2CH3​MgBr⟶2CH4​+BrM... more
CH3​C≡CCH3​ won't react with Grignard reagent because it doesn't have active H-atom.
In HC≡C−CH2​OH two active hydrogen atoms are present, hence it will react with two moles of CH3​MgBr (Grignard reagent) as shown below.
HC≡C−CH2​OH+2CH3​MgBr⟶2CH4​+BrM... more
Which one of the following includes all the other lower taxa?- a)Class
- b)Order
- c)Genus
- d)Species
Correct answer is option 'A'. Can you explain this answer?
Which one of the following includes all the other lower taxa?
a)
Class
b)
Order
c)
Genus
d)
Species
Lonely answered • 5 hours agoThe taxonomic ranks in descending order are domain, kingdom, phylum, class, order, family, genus and species. Higher taxon will comprise broader characteristic features and include features of its lower taxa. As a class would include order, family, genus and species.
Which one of the following membranes secretes a watery fluid that lubricates and cushions the joint?- a)Tendons
- b)Synovial membrane
- c)Ligaments
- d)Cartilage
Correct answer is option 'B'. Can you explain this answer?
Which one of the following membranes secretes a watery fluid that lubricates and cushions the joint?
a)
Tendons
b)
Synovial membrane
c)
Ligaments
d)
Cartilage
Lonely answered • 5 hours agoThe synovial cavity is covered by the synovial membrane which secretes a watery fluid called synovial fluid for the lubricating and cushioning joint.
The most widely accepted theory of ascent of sap is- a)Capillary force theory
- b) Atmospheric pressure theory
- c) Pulsating action of living cells
- d)Transpiration pull and cohesion tension theory
Correct answer is option 'D'. Can you explain this answer?
a)
Capillary force theory
b)
Atmospheric pressure theory
c)
Pulsating action of living cells
d)
Transpiration pull and cohesion tension theory
Giriselvan Sridhar answered • 6 hours agoAbove answer is right
Which one correctly matched :-[CBSE-2001]- a)Vit. E – Tocoferole
- b)Vit. D – Riboflavin
- c)Vit. B – Calciferole
- d)Vit. A – Thiamine
Correct answer is option 'A'. Can you explain this answer?
Which one correctly matched :-
[CBSE-2001]
a)
Vit. E – Tocoferole
b)
Vit. D – Riboflavin
c)
Vit. B – Calciferole
d)
Vit. A – Thiamine
Giriselvan Sridhar answered • 6 hours agoQuestion are too old soory
How many eggs will be formed from 100 primary oocytes- a)300
- b)400
- c)200
- d)100
Correct answer is option 'D'. Can you explain this answer?
How many eggs will be formed from 100 primary oocytes
a)
300
b)
400
c)
200
d)
100
Ias Masters answered • 8 hours ago- One primary oocyte will form one secondary oocyte and one polar body. One secondary oocyte will further form one ovum and one polar body and 1st polar body will produce two more polar bodies.
- So 1 primary oocyte will eventually form one ovum. So, 100 primary oocytes will form 100 eggs.
Abhinav Agarwal asked • 2 hours agoA movie projector projects an image of length 3.5 m of a 35 mm. movie film on a screen. Neglecting absorption of light by the film and the air, the ratio of the illumination on the screen is- a)100 : 1
- b)
- c)1 : 100
- d)
Correct answer is option 'D'. Can you explain this answer?
a)
100 : 1
b)
c)
1 : 100
d)
A hormone secreted by the posterior lobe of the pituitary is concerned with- a)Contraction of uterine muscles
- b)Secondary sexual characters
- c)Stimulation of thyroids
- d)Metabolism of carbohydrates
Correct answer is option 'A'. Can you explain this answer?
A hormone secreted by the posterior lobe of the pituitary is concerned with
a)
Contraction of uterine muscles
b)
Secondary sexual characters
c)
Stimulation of thyroids
d)
Metabolism of carbohydrates
Stepway Academy answered • 8 hours agoOxytocin is a hormone that acts on organs in the body and as a chemical messenger in the brain, controlling key aspects of the reproductive system, including childbirth and lactation, and aspects of human behaviour. Oxytocin is produced in the hypothalamus and is secreted into the bloodstream by the posterior pituitary gland. The posterior pituitary does not produce any hormones of its own, rather... more
In the human being, developing embryo remains in- a)Vagina
- b)Uterus
- c)Fallopian tube
- d)Ovaries
Correct answer is option 'B'. Can you explain this answer?
In the human being, developing embryo remains in
a)
Vagina
b)
Uterus
c)
Fallopian tube
d)
Ovaries
Mohit Rajpoot answered • 8 hours agoAfter fertilization, the zygote undergoes cleavage and divisions, thereby forming the blastocyst, which gets implanted in the endometrium of the uterus. The blastocyst then divides further and develops inside the uterus only. The uterus is the womb and is a major female reproductive hormone. Thus, the correct answer is option b.
Which of the following statements are related to Bartholin's gland?- a)They secrete mucus to lubricate the vagina.
- b)They are located at the opening of the vagina.
- c)They are regulated by the level of progesterone.
- d)Both A and B
Correct answer is option 'D'. Can you explain this answer?
Which of the following statements are related to Bartholin's gland?
a)
They secrete mucus to lubricate the vagina.
b)
They are located at the opening of the vagina.
c)
They are regulated by the level of progesterone.
d)
Both A and B
Universal Academy answered • 8 hours agoThe Bartholin's gland is the small glands which are located on the lateral and posterior sides of the vaginal opening. These glands are responsible for the secretion of the mucus which helps in the lubrication of the vaginal tract. The gland is considered as similar to the bulbourethral glands in males.
Hariom Mangal asked • 3 hours agoThe current in a conductor varies with time t as I = 2t + 3t2 where I is in ampere and t in seconds. Electric charge flowing through a section of the conductor during t = 2 sec to t = 3 sec is- a)10 C
- b)24 C
- c)33 C
- d)44 C
Correct answer is option 'B'. Can you explain this answer?
The current in a conductor varies with time t as I = 2t + 3t2 where I is in ampere and t in seconds. Electric charge flowing through a section of the conductor during t = 2 sec to t = 3 sec is
a)
10 C
b)
24 C
c)
33 C
d)
44 C
In human females, meiosis-ll is not completed until?- a)Puberty
- b)Fertilisation
- c)Uterine implantation
- d)Birth
Correct answer is option 'B'. Can you explain this answer?
In human females, meiosis-ll is not completed until?
a)
Puberty
b)
Fertilisation
c)
Uterine implantation
d)
Birth
New Words answered • 8 hours agoAt the end of meiosis I females have two daughter cells and meiosis II only occurs if and when the fertilization occurs by the sperm cell. Meiosis II starts after the sperm proceeds fertilization process in female
A: Statins are a product of fermentation activity of yeast.R: Statins and mevalonate compete for the same active site on enzymes involved in cholesterol synthesis.- a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
- b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.
- c)If the Assertion is a true statement, but Reason is false.
- d)If both Assertion and Reason are false statements.
Correct answer is option 'B'. Can you explain this answer?
A: Statins are a product of fermentation activity of yeast.
R: Statins and mevalonate compete for the same active site on enzymes involved in cholesterol synthesis.
a)
If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
b)
If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.
c)
If the Assertion is a true statement, but Reason is false.
d)
If both Assertion and Reason are false statements.
Aveຮђ Sԋαɾɱα answered • 8 hours agoAnswer B hoga
statin are a product of fermentation of yeast (Monascus purpureus)
and it act as a blood-cholesterol lowering agents
so it competes with mevalonate which responsible for production of cholestrol.....
okkkk.....
statin are a product of fermentation of yeast (Monascus purpureus)
and it act as a blood-cholesterol lowering agents
so it competes with mevalonate which responsible for production of cholestrol.....
okkkk.....
Can anyone explain Asymmetric spindle in pollen grains in sweet and simple language ?
Rutuja Patil answered • 9 hours agoAsymmetrical spindle of pollen grain was first discovered by CYRIL DEAN DARLINGTON in 1936. According to him in pollen grains it results from stretching of spindle when one group of chromosome is obstructed by the wall
ex:- It can be observed in budding yeast mitotic division
ex:- It can be observed in budding yeast mitotic division
Birds are-- a)Oviparous
- b)Viviparous
- c)Placental animal
- d)Having teeth in their mouth
Correct answer is option 'A'. Can you explain this answer?
Birds are-
a)
Oviparous
b)
Viviparous
c)
Placental animal
d)
Having teeth in their mouth
Addala Srilakshmi answered • 10 hours agoOviparous means egg laying.viviparous animals give birth to babies.
Mammalian placenta originates from :- a)Allantois and chorion
- b)Yolk Sac
- c)Allantois
- d)Amnion
Correct answer is option 'A'. Can you explain this answer?
Mammalian placenta originates from :
a)
Allantois and chorion
b)
Yolk Sac
c)
Allantois
d)
Amnion
Addala Srilakshmi answered • 10 hours agoMammalian placenta is also called chorianoallantoic placent
Aizen 13 asked • 4 hours agoIn an examination Raj drew diagrams of four stages of binary fission in Amoeba as shown below.
However, he was not awarded full marks as one of the stages was incorrectly drawn. The incorrectly drawn stage is:- a)I
- b)II
- c)III
- d)IV
Correct answer is option 'D'. Can you explain this answer?
In an examination Raj drew diagrams of four stages of binary fission in Amoeba as shown below.
However, he was not awarded full marks as one of the stages was incorrectly drawn. The incorrectly drawn stage is:
a)
I
b)
II
c)
III
d)
IV
Which of the following forms the birth canal?- a)Cervix
- b)Uterus
- c)Vagina
- d)Both A and C
Correct answer is option 'D'. Can you explain this answer?
Which of the following forms the birth canal?
a)
Cervix
b)
Uterus
c)
Vagina
d)
Both A and C
Addala Srilakshmi answered • 10 hours agoCervical canal + vagina is called birth canal...ncert line.
Ik Gardening Gardening asked • 4 hours agoA: It is considered advantageous to give the polio vaccine orally.R: It prevents reinfection by causing intestinal immunity.- a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
- b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.
- c)If the Assertion is a true statement, but Reason is false.
- d)If both Assertion and Reason are false statements.
Correct answer is option 'A'. Can you explain this answer?
A: It is considered advantageous to give the polio vaccine orally.
R: It prevents reinfection by causing intestinal immunity.
a)
If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
b)
If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.
c)
If the Assertion is a true statement, but Reason is false.
d)
If both Assertion and Reason are false statements.
Amita Jambhale asked • 5 hours agoThe radius of a planet is twice the radius of earth.Both have almost equal average mass-densities.If VP and VE are escape velocities of the planet and the earth, respectively, then [NEET Kar. 2013]- a)VE = 1.5VP
- b)VP = 1.5VE
- c)VP = 2VE
- d)VE = 3VP
Correct answer is option 'C'. Can you explain this answer?
The radius of a planet is twice the radius of earth.Both have almost equal average mass-densities.If VP and VE are escape velocities of the planet and the earth, respectively, then [NEET Kar. 2013]
a)
VE = 1.5VP
b)
VP = 1.5VE
c)
VP = 2VE
d)
VE = 3VP
The type of pseudocoelomates found in soil, freshwater and marine environments, and as parasites, are- a)nematodes
- b)Trichinella
- c)rotifers
- d)Cycliphora
Correct answer is option 'A'. Can you explain this answer?
The type of pseudocoelomates found in soil,
freshwater and marine environments, and as
parasites, are
a)
nematodes
b)
Trichinella
c)
rotifers
d)
Cycliphora
Lonely answered • 17 hours agoNematodes are the most important pseudocoelomate animals, in terms of both numbers and their impact on humans. ... We are not aware of the millions of these worms in the soil, in ocean and freshwater habitats, in plants, and in all kinds of other animals.
Garima Kunwar asked • 5 hours agoA hydrocarbon (A) is allowed to react with sodium amide and then with ethyl bromide to produce another hydrocarbon (B) which one ozonolysis produces propanoic acid only. The hydrocarbons (A) and (B) are, respectvely,- a)propyne and 2-pentyne
- b)1-butyne and 3-hexyne
- c)propyne and 3-hexyne
- d)1-butyen and 3-hexene
Correct answer is option 'B'. Can you explain this answer?
a)
propyne and 2-pentyne
b)
1-butyne and 3-hexyne
c)
propyne and 3-hexyne
d)
1-butyen and 3-hexene
Type of cleavage in an egg is determined by- a)Amount and distribution of yolk
- b)Number of egg membranes
- c)Size and location of the nucleus
- d)Shape and size of sperm
Correct answer is option 'A'. Can you explain this answer?
Type of cleavage in an egg is determined by
a)
Amount and distribution of yolk
b)
Number of egg membranes
c)
Size and location of the nucleus
d)
Shape and size of sperm
Lonely answered • 18 hours agoAmount and distribution of yolk in egg determines the type of cleavage in an egg during development.
EKTA SINGH asked • 6 hours agoSpecies facing competition might evolve mechanism that promotes co-existence rather than exclusion and that mechanism can be- a)Interspecific competition
- b)Intraspecific competition
- c)Competitive release
- d)Resource partitioning
Correct answer is option 'D'. Can you explain this answer?
Species facing competition might evolve mechanism that promotes co-existence rather than exclusion and that mechanism can be
a)
Interspecific competition
b)
Intraspecific competition
c)
Competitive release
d)
Resource partitioning
In a pregnant woman having prolonged labour pains, if the childbirth has to be hastened, it is advisable to administer a hormone that can- a)Activate the smooth muscles
- b)Increase the metabolic rate
- c)Release glucose into the blood
- d)Stimulate the ovary
Correct answer is option 'A'. Can you explain this answer?
In a pregnant woman having prolonged labour pains, if the childbirth has to be hastened, it is advisable to administer a hormone that can
a)
Activate the smooth muscles
b)
Increase the metabolic rate
c)
Release glucose into the blood
d)
Stimulate the ovary
Akà nkshà answered • 18 hours ago
How many fringes we will get in the same field of view if we use green light 
Anchal Maurya asked • 7 hours agoIn the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): For caogulating AS2 , S3 , Al3 + ions an better than Na⁺ ions.
Reason(R): Size of Al3 + is smaller than Na⁺.- a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.
- b)Both Assertion and Reason are true but Reason is not the correct explanation of assertion.
- c)Assertion is true but Reason is false.
- d)Assertion is false but Reason is true.
Correct answer is option 'B'. Can you explain this answer?
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): For caogulating AS2 , S3 , Al3 + ions an better than Na⁺ ions.
Reason(R): Size of Al3 + is smaller than Na⁺.
Reason(R): Size of Al3 + is smaller than Na⁺.
a)
Both Assertion and Reason are true and Reason is the correct explanation of assertion.
b)
Both Assertion and Reason are true but Reason is not the correct explanation of assertion.
c)
Assertion is true but Reason is false.
d)
Assertion is false but Reason is true.
Garima Kunwar asked • 8 hours agoThe region between two concentric spheres of radii R1 and R2 includes a volume charge density given by ρ = a r where a is a constant and r is the distance from the centre. There is a charge Q located at the centre. The value of a for which the region R 1 ≤ r ≤ R 2 has a constant electric field intensity is- a)
- b)
- c)
- d)
Correct answer is option 'C'. Can you explain this answer?
The region between two concentric spheres of radii R1 and R2 includes a volume charge density given by ρ = a r where a is a constant and r is the distance from the centre. There is a charge Q located at the centre. The value of a for which the region R 1 ≤ r ≤ R 2 has a constant electric field intensity is
a)
b)
c)
d)
Gauri Kumari asked • 11 hours agoLook at the following ECGs: 
- a)(ii) ECG is abnormal while (i) is a normal ECG
- b)(ii) represents enlargement of atrium and (i) represents enlargement of ventricles
- c)(i) represents enlargement of atrium and (ii) represents enlargement of ventricles
- d)both (i) and (ii) represent myocardial infarction
Correct answer is option 'D'. Can you explain this answer?
Look at the following ECGs:
a)
(ii) ECG is abnormal while (i) is a normal ECG
b)
(ii) represents enlargement of atrium and (i) represents enlargement of ventricles
c)
(i) represents enlargement of atrium and (ii) represents enlargement of ventricles
d)
both (i) and (ii) represent myocardial infarction
Smt Rita Rani asked • 13 hours agoWhich one of the following criteria is/are essential and form the basis of classical taxonomic studies?
- a)Ecological information of organisms
- b)Development process
- c)External and internal structure
- d)External structure
Correct answer is option 'A'. Can you explain this answer?
Which one of the following criteria is/are essential and form the basis of classical taxonomic studies?
a)
Ecological information of organisms
b)
Development process
c)
External and internal structure
d)
External structure
Raksha Raksha Raksha asked • 16 hours agoMost of the blood glucose entering the nephron returns to the plasma by the process of- a)Osmosis in the loop of Henle
- b)Tubular excretion in The distal tubu
- c)Active transport in the proximal tubule
- d)Facilitated transport in the distal tubule.
Correct answer is option 'C'. Can you explain this answer?
Most of the blood glucose entering the nephron returns to the plasma by the process of
a)
Osmosis in the loop of Henle
b)
Tubular excretion in The distal tubu
c)
Active transport in the proximal tubule
d)
Facilitated transport in the distal tubule.
Ankush Mor asked • 17 hours agoRam suffers punctures in his chest cavity without any damage to the lungs in an accident. It results in- a)Rapid increase in breathing rate
- b)Cessation of breathing
- c)Reduction in breathing rate
- d)No effect in breathing
Correct answer is option 'B'. Can you explain this answer?
Ram suffers punctures in his chest cavity without any damage to the lungs in an accident. It results in
a)
Rapid increase in breathing rate
b)
Cessation of breathing
c)
Reduction in breathing rate
d)
No effect in breathing
Nisha Prajapat asked • 18 hours ago(A) CH2=CH-NH3 (B) CH2 -CH=NH3 Which is more stable Resonance structure?
Santhosh Kumar asked • 18 hours agoA cylindrical metal rod of length L0 is shaped into a ring with a small gap as shown in figure.On heating the system.
- a)x decreases, r and d increases
- b)x and r increases, d decreases
- c)x, r and d all increases
- d)data insufficient
Correct answer is option 'C'. Can you explain this answer?
A cylindrical metal rod of length L0 is shaped into a ring with a small gap as shown in figure.On heating the system.
a)
x decreases, r and d increases
b)
x and r increases, d decreases
c)
x, r and d all increases
d)
data insufficient
Sarita Koturwar asked • 18 hours agoFor 
(peptide bond)Which statement is incorrect about peptide bond? [2001]- a)C — N bond length in proteins is longer than
usual bond length of the C — N bond - b)Spectroscopic analysis shows planar
structure of the 
group - c)C — N bond length in proteins is smaller
than usual bond length of the C—N bond - d)None of the above
Correct answer is option 'A'. Can you explain this answer?
For (peptide bond)
(peptide bond)Which statement is incorrect about peptide bond? [2001]
a)
C — N bond length in proteins is longer than
usual bond length of the C — N bond
usual bond length of the C — N bond
b)
Spectroscopic analysis shows planar
structure of the group
structure of the
groupc)
C — N bond length in proteins is smaller
than usual bond length of the C—N bond
than usual bond length of the C—N bond
d)
None of the above
= 0.The ratio of the maximum acceleration to the maximum velocity of the particle is
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