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In humans, at the end of the first meiotic division, the male germ cells differentiate into the
General Science Biology Zoology Class 12th NEET UG NEET UG Preparation
Q. 18 of Quiz-1436 (Que-ID : 2911)
In humans, at the end of the first meiotic division, the male germ cells differentiate into the
- spermatids
- spermatogonia
- primary spermatocytes
- secondary spermatocytes
Ans → (d)secondary spermatocytes
Explanation → It differentiate into secondary spermatocytes
This question is taken from this post → Human Reproduction - Biology Revision Test (Class 12th) | MCQs For NEET - attemp/practice
More MCQs in - Human Reproduction - Biology Revision Test (Class 12th) | MCQs For NEET
Q. 1 of Quiz-1436 (Que-ID : 2894)
Ovulation in the human female normally takes place during the menstrual cycle
- at the mind secretory phase
- just before the end of the secretory phase
- at the beginning of the proliferative phase
- at the end of the proliferative phase
Q. 2 of Quiz-1436 (Que-ID : 2895)
After ovulation Graafian follicle regreses into
- corpus atresia
- corpus callosum
- corpus luteum
- corpus albicans
Q. 3 of Quiz-1436 (Que-ID : 2896)
Immediately after ovulation, the mammalian egg is covered by a membrane known as
- chorion
- zona pellucida
- corona radiata
- vitelline membrane.
Q. 4 of Quiz-1436 (Que-ID : 2897)
Which one of the following events is correctly matched with the time period in a normal menstrual cycle ?
- Release of egg : 5 th day
- Endometrium regenerates : 5 – 10 days
- Endometrium secretes nutrients for implantation: 11 – 18 days
- Rise in progesterone level : 1 – 15 days
Q. 5 of Quiz-1436 (Que-ID : 2898)
If mammalian ovum fails to get fertilised, which one of the following is unlikely ?
- Corpus luteum will distintegrate.
- Progesterone secretion rapidly declines.
- Estrogen secretion increases.
- Primary follicle starts developing
Q. 6 of Quiz-1436 (Que-ID : 2899)
A human female reaches menopause aroung the age of__ yrs
- 50
- 15
- 70
- 25
Q. 7 of Quiz-1436 (Que-ID : 2900)
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is
- acrosomal reaction
- cortical reaction
- acrosin reaction
- bindin reaction
Q. 8 of Quiz-1436 (Que-ID : 2901)
Which part of the sperm plays an important role in penetrating the egg membrane ?
- Allosome
- Tail
- Autosome
- Acrosome
Q. 9 of Quiz-1436 (Que-ID : 2902)
In oocyte secondary maturation occurs in
- ovary
- abdominal cavity
- Fallopian tube
- uterus.
Q. 10 of Quiz-1436 (Que-ID : 2903)
Besides activating the egg another role of a sperm is to carry to egg
- RNA
- mitochondria
- DNA
- ribosomes
Q. 11 of Quiz-1436 (Que-ID : 2904)
Preparation of sperm before penetration of ovum is
- spermiation
- cortical reaction
- spermiogenesis
- capacitation
Q. 12 of Quiz-1436 (Que-ID : 2905)
The function of the secretion of prostate gland is to
- inhibit sperm activity
- attract sperms
- stimulate sperm activity
- none of these.
Q. 13 of Quiz-1436 (Que-ID : 2906)
Lower narrow end of uterus is called
- urethra
- cervix
- clitoris
- vulva
Q. 14 of Quiz-1436 (Que-ID : 2907)
Bartholin’s glands are situated
- on the either side of vagina in humans
- on either side of vas deferens in humans
- on either side of penis in humans
- on either side of Fallopian tube in humans
Q. 15 of Quiz-1436 (Que-ID : 2908)
In human adult females oxytocin
- stimulates pituitary to secrete vasopressin
- causes strong uterine contractions during parturition
- is secreted by anterior pituitary
- stimulates growth of mammary glands
Q. 16 of Quiz-1436 (Que-ID : 2909)
The third stage of parturition is called “after-birth”. In this stage
- excessive bleeding occurs
- fetus is bom and cervix and vagina contraction to normal condition happens
- fetus is bom and contraction of uterine wall prevents excessive bleeding
- placenta is expelled out
Q. 17 of Quiz-1436 (Que-ID : 2910)
spot the odd one out from the following structures with reference to the male reproductive system
- Rate testis
- Epididymis
- Vasa efferentia
- Isthmus
Q. 18 of Quiz-1436 (Que-ID : 2911)
In humans, at the end of the first meiotic division, the male germ cells differentiate into the
- spermatids
- spermatogonia
- primary spermatocytes
- secondary spermatocytes
Q. 19 of Quiz-1436 (Que-ID : 2912)
How many sperms are formed from a secondary spermatocyte ?
- 4
- 8
- 2
- 1
Q. 20 of Quiz-1436 (Que-ID : 2913)
How many sperms are formed from 4 primary spermatocytes ?
- 4
- 1
- 16
- 32
Q. 21 of Quiz-1436 (Que-ID : 2914)
In spermatogenesis, reduction division of chromosome occurs during conversion of
- spermatogonia to primary spermatocytes
- primary spermatocytes to secondary spermatocytes
- secondary spermatocytes to spermatids
- spermatids to sperms
Q. 22 of Quiz-1436 (Que-ID : 2915)
Which of the following groups of cells in the male gonad, represent haploid cells ?
- Spermatogonial cells
- Germinal epithelial cells
- Secondary spermatocytes
- Primary spermatocytes
Q. 23 of Quiz-1436 (Que-ID : 2916)
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called
- spermiogenesis
- spermatogenesis
- spermatocytogenesis
- spermiation
Q. 25 of Quiz-1436 (Que-ID : 2918)
At what stage of life is oogenesis initiated in a human female ?
- At puberty
- During menarch
- During menopause
- During embryonic development
More MCQs In - General Science Biology Zoology Class 12th NEET UG NEET UG Preparation
Q. 23 of Quiz- (Que-ID : 3141)
What is the effect of turgor pressure in Munch hypothesis?
- Increase of turgor pressure
- Decrease of turgor pressure
- No change in turgor pressure
- independent to water potential gradient
Q. 14 of Quiz- (Que-ID : 3207)
Fusifrom initial cells of cambium from
- vascular rays
- tracheary elements
- ray parenchyma
- phloem parenchyma
Q. 12 of Quiz- (Que-ID : 3155)
A protein having both structural and enzymatic traits is
- Collagen
- Trypsin
- Myosin
- Actin
Q. 23 of Quiz- (Que-ID : 2916)
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called
- spermiogenesis
- spermatogenesis
- spermatocytogenesis
- spermiation
Q. 1 of Quiz- (Que-ID : 2744)
Which hormones is a stress hormone
- Norepinephrine
- Androgen
- Cortisol
- FSH
Q. 18 of Quiz- (Que-ID : 3486)
The average efficiency of energy transfer from herbivoure to carnivorce level is
- 5%
- 10%
- 20%
- 30%
Q. 24 of Quiz- (Que-ID : 3442)
The species used as natural genetic engineer is :
- Agrobacterim tumefaciens
- Bacillus thruingiensis
- Aspergillus
- Drosophila
Q. 20 of Quiz- (Que-ID : 2663)
RBC contains very high quantity of which enzyme
- Carbonic anhydrase
- Lysosome
- Ligase
- None of the above
Q. 17 of Quiz- (Que-ID : 3110)
Presence of phosphorus
- brings about healthy root growth
- promotes fruit ripening
- retards protein formation
- none
Q. 22 of Quiz- (Que-ID : 3015)
Division of nucleus without being followed by cytokinesis results into
- Phargmoplast
- Polyploidy
- Uninucleate condition
- Multinucleate condition
Q. 19 of Quiz- (Que-ID : 2988)
Angiotensinogen 2 is
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Q. 24 of Quiz- (Que-ID : 2993)
Vasa recta is present in which type of nephron
- Cortical nephron
- Juxta medullary nephron
- Both a and b
- None of the above
Q. 22 of Quiz- (Que-ID : 3540)
The agents that bring undesirable changes in the environment arc called
- Pollution
- Fragments
- Pollutants
- None of the above
Q. 9 of Quiz- (Que-ID : 2952)
If the sequence of initrogen bases of the coding strand of DNA in a transcription unit is: 5’ – ATGAATG – 3’, the sequence of bases in its RNA transcript would be
- 5’ – AUG A AUG – 3’
- 5’ – UACUU AC – 3’
- 5’ – CAUUCAU – 3’
- 5’ – GUAAGUA – 3’.
Q. 15 of Quiz- (Que-ID : 3333)
Passive immunity can be conferred directly by
- vaccines
- antitoxins
- colostrum
- both (b) & (c)
Q. 3 of Quiz- (Que-ID : 3071)
The primary carbon dioxide acceptor in C4 cycle is
- malic acid
- phosphoenol pyruvate
- rubisco
- aspartic acid
Q. 5 of Quiz- (Que-ID : 2898)
If mammalian ovum fails to get fertilised, which one of the following is unlikely ?
- Corpus luteum will distintegrate.
- Progesterone secretion rapidly declines.
- Estrogen secretion increases.
- Primary follicle starts developing
Q. 10 of Quiz- (Que-ID : 3528)
Increased skin cancer and high mutation rate are due to
- Acid Rain
- Ozone Depletion
- CO2 Pollution
- CO Pollution
Q. 17 of Quiz- (Que-ID : 3485)
During food chain the maximum energy is stored in
- Producers
- Decomposers
- Herbivoures
- Camivourse
Q. 7 of Quiz- (Que-ID : 3250)
Which of the following statement is correct?
- Platypus lays eggs
- Camels have biconcave RBCs
- Whales respire by gills
- Bats do not fly
Q. 13 of Quiz- (Que-ID : 2706)
Which among the following are involuntary muscles
- Cardiac
- Skeletal
- Smooth
- Both a and c
Q. 25 of Quiz- (Que-ID : 2943)
Genes located very close to one another on same chromosome tend to be transmitted together and are called as
- allelomorphs
- identical genes
- linked genes
- recessive genes
Q. 6 of Quiz- (Que-ID : 3224)
The largest petal overlaps the lateral ones in _________ aestivation.
- Papilionaceous
- Valvate
- Twisted
- Imbricate
Q. 2 of Quiz- (Que-ID : 3470)
Soil particle determine the character of
- Organisation
- Biomass
- Area capacity
- Soil plants
Q. 2 of Quiz- (Que-ID : 3170)
Which of the following is absent in female frog?
- Webbed feet
- Copulatory pads
- Tympanum
- All are present
Q. 1 of Quiz- (Que-ID : 713)
Which Is Known As The Power House Of The Cell?
- Mitochondria
- Ribosome
- Nucleus
- Golgi apparatus
Q. 4 of Quiz- (Que-ID : 2722)
Name the classification based on genetic and evolutionary relationship
- Phonetics
- Biosynthesis
- Numerical taxonomy
- Cladistics
Q. 18 of Quiz- (Que-ID : 3411)
Restriction endonuclease cuts
- One stand of DNA at specific site
- Both strands of DNA
- Both strands of DNA at any site
- Single strand of RNA
Q. 12 of Quiz- (Que-ID : 3305)
Single step large mutation leading to speciation is also called
- founder effect
- saltation
- branching descent
- natural selection
Q. 9 of Quiz- (Que-ID : 2702)
Name a disorder which occurs due to rapid spasm in muscles due to low ca2+ in body fluid
- Tetany
- Arthritis
- Myasthenia gravis
- Gout
Q. 7 of Quiz- (Que-ID : 78)
White phosphorous is generally kept under-
- Alcohol
- Water
- glycerine
- ether
Q. 22 of Quiz- (Que-ID : 3490)
Which types of the following pyramid are never inverted?
- Pyramid of energy
- Pyramid of biomass
- Pyramid of number
- Pyramid of dry biomass
Q. 21 of Quiz- (Que-ID : 3414)
DNA obtained for DNA finger printing:
- W.B.C
- Hair root cells
- Body fluids
- None of these
Q. 6 of Quiz- (Que-ID : 3424)
Transgenic Golden Rice has Highly Nutrient value for:
- Lysine
- Methionine
- Glutanin
- Vitamin-A
Q. 11 of Quiz- (Que-ID : 3454)
Both the species benefit in
- Parasitism
- Mutualism
- Competition
- Predation
Q. 10 of Quiz- (Que-ID : 3053)
Complete the reaction. _________ + O2 → CO2 + _______ + Energy
- C6H12O6, 2H2O
- C12H22O11, 6H2O
- C6H12O6, 6H2O
- C12H22O11, 11H2O
Q. 13 of Quiz- (Que-ID : 3181)
The characteristic of simple eqithelium is that
- the cells are loosely placed
- they are single – layered in thickness
- cells are tightly packed with no intercelluar spaces
- cells are generally ciliated
Q. 12 of Quiz- (Que-ID : 2655)
which among the following is measured by spirometer
- Total lung capacity
- FRC
- RV
- TV
Q. 24 of Quiz- (Que-ID : 2817)
Which among is faster impulse transmission
- Chemical
- Both
- Electrical
- None of these
Q. 15 of Quiz- (Que-ID : 3058)
A characteristic of drupe is
- fleshy seed coat
- stony pericarp
- stony mesocarp
- stony endocarp
Q. 20 of Quiz- (Que-ID : 2989)
ANF can cause
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Q. 15 of Quiz- (Que-ID : 3408)
Triticale, first man made cereal crop, has been obtained by crossing wheat with:
- Rye
- Pearl millet
- Sugarcane
- Barley
Q. 2 of Quiz- (Que-ID : 2970)
Which among the following is not ureotelic
- Mammal
- Aquatic insect
- Terrestrial amphibian
- Marine fishes
Q. 12 of Quiz- (Que-ID : 2680)
Which enzyme converts prothrombin into thrombin
- Thrombin
- Thrombokinase
- Pepcase
- Ligase
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