NEET Biology - Reproduction
Exam Duration: 60 Mins Total Questions : 30
which part of ovary in mammals act as an endocrine gland after ovulation?
- (a)
Graafian follicle
- (b)
stroma
- (c)
germinal epithelium
- (d)
vitelline membrance
menstrual flow occurs due to lack of
- (a)
FSH
- (b)
oxytocin
- (c)
vasopressin
- (d)
progesterone
Human eggs are
- (a)
alecithal
- (b)
microlecithal
- (c)
mesolecithal
- (d)
macrolecithal
In case of a couple, where the male is having a very low sperm count, which technique will be suitable for fertilisation?
- (a)
Intrauterine Transfer
- (b)
Gamete Intracytoplasmic Fallopian Transfer
- (c)
Artificial Insemination
- (d)
Intracytoplasmic Sperm Injection
Tablets to prevent contraception contain
- (a)
progesterone
- (b)
FSH
- (c)
LH
- (d)
Both (b) and (c)
The coconut water from tender coconut represents
- (a)
fleshy mesocarp
- (b)
free-nuclear proembryo
- (c)
free-nuclear endosperm
- (d)
endocarp
Which set is similar?
- (a)
Corpus luteum - Graafian follicle
- (b)
Sebum - Sweat
- (c)
Bundle of His - Pacemaker
- (d)
Vit-B7 - Niacin
Cleavage in mammalian egg is
- (a)
equal holoblastic
- (b)
unequal holoblastic
- (c)
superficial meroblastic
- (d)
discoidal meroblastic
Anemophily type of pollination is found in
- (a)
Salvia
- (b)
bottle brush
- (c)
Vallisneria
- (d)
coconut
How do the pills work?
(i) Inhibit ovulation and implantation
(ii) Alter the quality of cervical mucus to prevent or retard the entry of sperms
(iii) Inhibit spermatogenesis
- (a)
(i), (ii) and (iii)
- (b)
(i) and (ii)
- (c)
(ii) only
- (d)
(iii) only
Match each function below with the associated part or parts of the human male reproductive system shown in the figure.
(i) Produces sperm
(ii) Conducts the sperm through the penis to the outside of the body
(ii) produces seminal fluid
(iv) Connects the epididymis with the urethra
- (a)
(i)-G, (ii)-E, (iii)-A, C, D, (iv)-B
- (b)
(i)-A, B; (ii)-E, (iii)-C, D, (iv)-G
- (c)
(i)-G; (ii)-F; (iii)-A, B, C; (iv)-E
- (d)
(i)-F; (ii)-E; (iii)-A, B, D; (iv)-C
In the 28 days human ovarian cycle, the ovulation takes place typically on
- (a)
day 1 of the cycle
- (b)
day 14 of the cycle
- (c)
day 5 of the cycle
- (d)
day 28 of the cycle
The technique called Gamete Intra Fallopian Transfer (GIFT) is recommended for those females
- (a)
who cannot produce an ovum
- (b)
who cannot retain the foetus inside uterus
- (c)
who cannot provide suitable environment for fertilisation
- (d)
all of these.
Fetus gets nourishment and oxygen through
- (a)
allantois
- (b)
placenta
- (c)
yolk sac
- (d)
chorion.
The method of directly injecting a sperm into ovum in assisted reproductive technology is called
- (a)
GIFT
- (b)
ZlFT
- (c)
ICSI
- (d)
ET
Alerone layer that is protein rich found in some cereals is a part of
- (a)
Endosperm
- (b)
Embryo
- (c)
Tegmen
- (d)
Testa
After culturing the anther of a pants few diploid plant were got along with haploid plant. Which of the following part might have given rise to diploid plant
- (a)
Vegetative cell of pollen
- (b)
Exine of pollen wall
- (c)
Cells of anther wall
- (d)
Generative cell of pollen
Whichis not true for life span of an organism?
- (a)
Periodfrom birthto naturaldeathof an organism
- (b)
Itis necessarilycorrelatedwith size of organisms
- (c)
It may be very short
- (d)
Senescence is a phase of life span vegetative, reproductive
Tubuli recti of seminiferous tubules open into
- (a)
Epididymis
- (b)
Vasa efferentia
- (c)
Vasa deferentia
- (d)
Rete testis
Population growth rate depends upon
- (a)
Birth rate
- (b)
Death rate
- (c)
Age-sex ratio
- (d)
All of these
Spermatogenesis and sperm differentiation are under the control of
- (a)
FSH only
- (b)
LH
- (c)
Testosterone and FSH
- (d)
Parathyroid hormone
Which of the following statements is not true?
- (a)
Life span is the period from biorth to the natural death of an organism
- (b)
All small organisms have very short life span
- (c)
Life expectancy is the characteristic populations
- (d)
Maximum life span is the characteristic of species
Eggs are convered with a tough, leathery coat in case of
- (a)
Sharks
- (b)
Bony fishes
- (c)
Lizards
- (d)
Urochordates
In ectopic pregnancy, foetus grows in
- (a)
Fundus part of uterus
- (b)
Fallopian tube
- (c)
Uterus
- (d)
Both (1) & (3)
Castration cannot be taken as a contraceptive device, because
- (a)
Deficiency of testosterone hormone, will deprive a person of sexual drive, desire and/ or the sexual act
- (b)
It inhibits gamete transport
- (c)
It is surgical method of contraception also called sterilisation
- (d)
This technique is highly effective but its reversibility is poor
Select the incorrect match
- (a)
Asexual reproduction : Somatogenic reproduction
- (b)
Sexual reproduction : Fusion of gametes
- (c)
Vegetative propagation : Rhizome
- (d)
Clones : Morphologically similar genetically dissimilar
The gynoecium of michelia is
- (a)
Monocarpellary
- (b)
Multicarpellary, apocarpous
- (c)
Multicarpellary, syncarpous
- (d)
Bicarpellary, syncarpius
The innmer most wall layer of anther
- (a)
Is nutritive in function
- (b)
Helps in dehiscence of anther
- (c)
Is haploid and protective in function
- (d)
Forms Microspores
Choose the correct optionw.r.t the function of the germ pore.
- (a)
It allows growth of pollen tube
- (b)
It allows water absorption in seed
- (c)
It helps dehiscence of pollen grain
- (d)
More than one option is correct
Endosperm is formed during the double fertilization by
- (a)
Two polar nuclei and one male gamete
- (b)
One polar nuclei and one male gamete
- (c)
Ovum and male gamete
- (d)
Two polar nuclei and two male gametes