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Acrosome is a type of
General Science Biology Zoology Class 12th NEET UG NEET UG Preparation
Q. 24 of Quiz-1436 (Que-ID : 2917)
Acrosome is a type of
- lysosome
- flagellum
- ribosome
- basal body
Ans → ()
Explanation → Acrosome is a type of lysosome
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. 11 of Quiz- (Que-ID : 2779)
In angiosperm, characters of flowers are used in classification because
- Flowers are attractive
- Flowers are large
- Characters of flowers are conservative
- None of the above
Q. 1 of Quiz- (Que-ID : 3444)
For human population, the age pyramids generally show age distribution of
- Only males
- Only females
- Of males and females
- None of the above
Q. 20 of Quiz- (Que-ID : 3463)
Submerged hydrophytes have disseced leaves for
- Decreasing surface area
- Increasing surface area
- Reducing effect pf water currents
- Increasing number of stomata
Q. 14 of Quiz- (Que-ID : 3157)
With reference to enzymes, which one of the following statements is true?
- Apoenzyme = Holoenzyme + Coenzyme
- Coenzyme = Apoenzyme + Holoenzyme
- Holoenzyme = Apoenzyme + Coenzyme
- Holoenzyme = Coenzyme – Apoenzyme
Q. 7 of Quiz- (Que-ID : 1584)
Energy yielding anaerobic breakdown of glucose yielding lactate, ethanol with some other products is… . ..
- Protein fermentation
- Fat metabolism
- Glucose fermentation
- Nucleic acid fermentation
Q. 9 of Quiz- (Que-ID : 2622)
Which enzyme is not present in pancreatic juice
- Lipases
- Amylase
- Nucleases
- Nucleosides
Q. 17 of Quiz- (Que-ID : 3460)
The maximum growth rate occurs in
- Lag phase
- Exponential, phase
- Stationary phase
- Senescent phase
Q. 20 of Quiz- (Que-ID : 3188)
Which is not a part of reproductive system of female cockroach?
- Phallic gland
- Vestibulum
- Gonapophyses
- Collaterial glands
Q. 5 of Quiz- (Que-ID : 3323)
Which of the following is the bacterial disease in humans ?
- Dysentery
- Malaria
- Plague
- Both (a) & (c)
Q. 12 of Quiz- (Que-ID : 3030)
Plants grow throughout their life due to
- presence of meristems
- presence of vascular cambium
- presence of xylem and phloem
- presence of tracheids
Q. 24 of Quiz- (Que-ID : 2637)
In which condition the food is not digested properly leading to feeling of fullness
- Indigestion
- Constipation
- Diarrhoea
- None of the above
Q. 17 of Quiz- (Que-ID : 3385)
BOD is………..in polluted water and in potable water.
- more, less
- less, more
- less in both
- medium in both
Q. 14 of Quiz- (Que-ID : 2732)
Heterocyst in nostoc participates in
- Nitrogen fixation
- Fragmentation
- Fruit storage
- Symbiotic relation
Q. 17 of Quiz- (Que-ID : 3435)
Natural genetic engineer is :
- Bacillus subtilis
- Pseudomonas sp
- Escherichia coli
- Agrobacterium tumefaciens
Q. 13 of Quiz- (Que-ID : 3406)
DNA element with ability to change its position is called
- Cistron
- Transposon
- Intron
- Ricon
Q. 4 of Quiz- (Que-ID : 3322)
Typhoid fever in human beings is caused by
- Plasmodium vivax
- Trichophyton
- Salmonella typhi
- Rhinoviruses
Q. 12 of Quiz- (Que-ID : 3455)
A stage of suspended development is called
- Diapause
- Suspend
- Migrate
- Aestivation
Q. 1 of Quiz- (Que-ID : 2719)
In five kingdom classification chlamydomonas and chlorella falls under
- Algae
- Plantae
- Monera
- Protista
Q. 14 of Quiz- (Que-ID : 3457)
Winter sleep is also called as
- Hibernation
- Suspend
- Migrate
- Aestivation
Q. 4 of Quiz- (Que-ID : 3397)
Plasmids in bacterial cells are
- extra-chromosomal DNA, which cannot replicate
- extra-chromosomal DNA, which can . self-replicate
- extra DNA associated with the genome
- extra DNA, associated with the genome, but cannot replicate.
Q. 3 of Quiz- (Que-ID : 3146)
Insulin is made up of _______ and _______.
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Q. 25 of Quiz- (Que-ID : 3418)
Transgenic plants are develop by
- Introducing of foreign fenes
- Clone and genetically modified genes
- Genetic engineering
- Purified genes
Q. 3 of Quiz- (Que-ID : 2921)
What will be the distribution of phenotypic features in the first filial generation after a cross between a homozygous female and a heterozygous male for a single locus ?
- 3:01
- 1:02:01
- 1:01
- None of the above
Q. 14 of Quiz- (Que-ID : 2832)
Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because
- nodes are shorter than intemodes
- nodes have meristematic cells
- nodes are located near the soil
- nodes have non-photosynthetic cells.
Q. 13 of Quiz- (Que-ID : 3356)
Artificial insemination involves
- super ovulation
- semen collection
- egg collection
- embryo collection
Q. 2 of Quiz- (Que-ID : 2845)
Anther is generally
- monosporangiate
- bisporangiate
- tetrasporangiate
- trisporangiate.
Q. 23 of Quiz- (Que-ID : 3341)
Elephantiasis, a chronic inflammation that results in gross deformities is caused by
- Ascaris
- E.coli
- Wuchereria
- Trichophyton
Q. 18 of Quiz- (Que-ID : 3436)
Bt toxin is :
- intracellular lipid
- Intracellular crystalline protein
- Extracellular crystalline protein
- Lipid
Q. 15 of Quiz- (Que-ID : 3083)
Which one of the following statement is true for ATP?
- ATP is prosthetic part of an enzyme
- ATP is an enzyme
- ATP is organic ions of enzyme
- ATP is a Co-enzyme
Q. 16 of Quiz- (Que-ID : 3334)
Which form of pathogen is used in vaccination ?
- Activated and strong pathogenic antigens
- Inactivated and weakened pathogenic antigens
- Hyperactive and strong pathogen
- Preformed antibodies
Q. 21 of Quiz- (Que-ID : 3439)
A technology which has found immense use in solving cases of disputed percentage is:
- Polymerase chain reaction
- DNA finger printing
- None of these
- Both (a) and (b)
Q. 23 of Quiz- (Que-ID : 3541)
Particulate matter can be removed by
- Catalytic converter
- Converter
- Radioactive converter
- Electrostatic converter
Q. 23 of Quiz- (Que-ID : 2941)
Chromosomal theory of inheritance was given by
- Morgan et al
- Sutton and Boveri
- Hugo deVries
- Gregor J. Mendel
Q. 1 of Quiz- (Que-ID : 2994)
Golgi complex and endoplasmic reticulum cannot be seen during
- late telophase
- late prophase
- early anaphase
- late metaphase
Q. 10 of Quiz- (Que-ID : 3103)
Which one of the following mineral elements plays an in biological nitrogen fixation?
- Copper
- Manganese
- Zinc
- Molybdenum
Q. 12 of Quiz- (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. 11 of Quiz- (Que-ID : 3529)
Natural air pollutant are
- Pollen Grains
- Gases of Volcanic Eruption
- Aerosol
- Fluorides
Q. 11 of Quiz- (Que-ID : 2829)
The wall of the ovary forms
- pericarp
- fruit wall
- fruit
- both (a) and (b).
Q. 21 of Quiz- (Que-ID : 3539)
The natural aging of the lake is called
- Biomagnification
- Eutrophication
- BOD
- None of the above
Q. 22 of Quiz- (Que-ID : 3440)
Anticoagulant hirudin is found in:
- In Snake
- In Lizard
- In Leech
- In Scorpion
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. 13 of Quiz- (Que-ID : 3381)
Monascus purpureus is a yeast commercially used in the production of
- citric acid
- ethanol
- blood cholesterol lowering statins
- streptokinase for removing clots from blood vessels
Q. 13 of Quiz- (Que-ID : 1975)
Eyelashes are lubricated by-
- Ceruminous glands
- Meibomian glands
- Lacrymal glands
- All of these
Q. 2 of Quiz- (Que-ID : 3395)
In genetic engineering experiments, restriction enzymes are used for
- viral DNA
- bacterial DNA
- eukaryotic DNA
- any type of DNA.
Q. 24 of Quiz- (Que-ID : 3092)
Fixation of one CO2 molecule through Calvin cycle requires:
- 1 ATP and 2NADPH2
- 2ATP and 2NADPH2
- 3ATP and 2NADPH2
- 2ATP and 1NADPH2
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