Biology - Reproduction
Exam Duration: 45 Mins Total Questions : 45
double fertilisation was discovered by
- (a)
SG nawaschin
- (b)
P maheswari
- (c)
Kari schnarf
- (d)
BG L swamy
perisperm is remaining part of
- (a)
endosperm
- (b)
nucellus
- (c)
ovule
- (d)
integument
maize grain is
- (a)
seed
- (b)
embryo
- (c)
ovule
- (d)
fruit
gamete intra fallopian transfer is advised to females who
- (a)
cannot produce on ovum
- (b)
cannot retain foetus inside uterus
Choose the living organisms according to their increasing order of life span.
- (a)
Fruit fly ⟶ butterfly ⟶ crocodile ⟶ banyan tree
- (b)
Butterfly ⟶ crocodile ⟶ elephant ⟶ banyan tree
- (c)
Fruit fly ⟶ elephant ⟶ crocodile ⟶ banyan tree
- (d)
Butterfly ⟶ fruit fly ⟶ banyan tree ⟶ elephant
Reproduction enables the
- (a)
Complexity of life
- (b)
Continuity of life
- (c)
Conservation of life
- (d)
Simplicity of life
The human penis becomes erect during copulation because of the
- (a)
bones in it
- (b)
paired cartilage
- (c)
elongation of its muscles
- (d)
accumulation of blood in spongy glans penis
The penis serves as an outlet for
- (a)
urine
- (b)
Orrgan for copulation
- (c)
semen
- (d)
all the three
When the graffian follicle ruptures
(i) ovulation occurs with antral discharge
(ii) granulosa cells enlarge to form corpus albicans
(iii) granulose cells are filled with yellow pigment lutein
- (a)
i & ii correct
- (b)
ii & iii correct
- (c)
i & iii correct
- (d)
i, ii &iii correct
Milk is secreted by
- (a)
areolar glands
- (b)
alveolar cells
- (c)
mammary lobes
- (d)
mammary glands
Contraceptive pills are used by
- (a)
males only
- (b)
females only
- (c)
both male and females
- (d)
none
Which one is not the venereal disease?
- (a)
Trichomoniasis
- (b)
Genital warts
- (c)
Hepatitis A
- (d)
Gonorrhoea
The function of copper T is to prevent
- (a)
fertilisation
- (b)
egg maturation
- (c)
ovulation
- (d)
implantation of blastocyst
Which type of association is found in between entomophilous flower and pollinating agent?
- (a)
Mutualism
- (b)
Commensalism
- (c)
Cooperation
- (d)
Co-evolution
Read the following statements about asexual reproduction and select the correct one
(i) It involves a single parent.
(ii) It is slower than sexual reproduction.
(iii) It produces progeny that are genetically identical with the parent but not with one another.
(iv) The progeny of asexual reproduction can be termed as clones
- (a)
(i) and (ii)
- (b)
(ii) and (iii)
- (c)
(i) and (iv)
- (d)
(i), (iii) and (iv)
Refer to the given figures which show three different types of fission. Select the option which correctly matches them with the organism in which they occur.
- (a)
(i) (ii) (iii) Euglena Plasmodium Amoeba - (b)
(i) (ii) (iii) Plasmodium Paramecium Euglena - (c)
(i) (ii) (iii) Euglena Paramecium Escherichia - (d)
(i) (ii) (iii) Euglena Paramecium Amoeba
This plant was introduced in India because of its beautiful flowers and shape of leaves but it became a notorious weed in Indian water bodies. Identify this plant.
- (a)
- (b)
- (c)
- (d)
Identify the parts labelled as A to F from the given diagram of human female reproductive system and select the correct option.
- (a)
A-Cervix, B-Vagina, C-Uterus, D-Urinary bladder, E-Clitoris, F-Vaginal orifice
- (b)
A-Vagina, B-Cervix, C-Urinary bladder, D-Uterus, E-Vaginal orifice, F-Clitoris
- (c)
A-Urethra, B-Vagina, C-Urinary bladder, D-Cervix, E-Uterus, F-Clitoris
- (d)
A-Vaginal orifice, B-Cervix, C-Uterus, D-Urethra, E-Clitoris, F-Urinary bladder
Refer the following figures and identify the type of gametes (A. B and C) respectively.
- (a)
Heterogametes, isogametes, homogametes
- (b)
Isogametes, homogametes, heterogametes
- (c)
Homogametes, isogametes, heterogametes
- (d)
Homo/lsogametes, heterogametes, heterogametes
Read the following statements and select the correct option.
Statement 1: Unisexual flowers are either staminate flowers or pistillate flowers.
Statement 2: Both monoecious and dioecious plants have unisexual flowers.
- (a)
Both statements 1 and 2 are correct
- (b)
Statement 1 is correct but statement 2 is incorrect
- (c)
Statement 1 is incorrect but statement 2 is correct.
- (d)
Both statements 1 and 2 are incorrect
Selectthe incorrect statement about externalfertilisation.
- (a)
Organisms showing external fertilisation produce a large number of male gametes only
- (b)
External fertilisation is very uncertain and requires synchrony between release of male and female gametes.
- (c)
It is replaced by internal fertilisation in higher organisms as it wastes energy and requires external medium like water.
- (d)
It occurs in most of the fishes and amphibians.
Read the following statements about menstrual cycle and select two correct statements.
(i) Lack of menstruation may be indicative of pregnancy.
(ii) The changes in the ovary and the uterus are induced by changes in the levels of ovarian hormones only.
(iii) LH surge induces ovulation.
(iv) If fertilisation occurs, corpus luteum degenerates immediately
- (a)
(i) and (ii)
- (b)
(ii) and (iii)
- (c)
(i) and (iii)
- (d)
(ii) and (iv)
Which method can be used for women that cannot produce ovum but can provide suitable environment?
- (a)
IUD
- (b)
GIFT
- (c)
IUI
- (d)
ICSI
Which hormone is most effective in producing uterine changes during menstrual cycle?
- (a)
A
- (b)
B
- (c)
C
- (d)
D
Match between the following representing parts of the sperm and their functions and choose the correct option.
Column A | Column B |
---|---|
A. Head | (i) Enzymes |
B. Middle piece | (ii) Sperm motility |
C. Acrosome | (iii) Energy |
D. Tail | (iv) Genetic material |
- (a)
A-(ii), B-(iv), C-(i), D-(iii)
- (b)
A-(iv), B-(iii), C-(i), D-(ii)
- (c)
A-(iv), B-(i). C-(ii), D-(iii)
- (d)
A-(ii), B-(i), C-(iii), D-(iv)
From the sexually transmitted diseases mentioned below, identify the one which does not specifically affect the sex organs.
- (a)
Syphilis
- (b)
AIDS
- (c)
Gonorrhea
- (d)
Genital warts
Assertion : Reproduction by zoospores occur in some higher fungi.
Reason: Zoospores are non-motile and non-flagellated spores.
- (a)
If both assertion and reason are true and reason is the correct explanation of assertion.
- (b)
If both assertion and reason are true but reason is not the correct explanation of assertion
- (c)
If assertion is true but reason is false.
- (d)
If both assertion and reason are false
A typical angiosperm embryosac at maturity is
- (a)
7 celled - 8 nucleated
- (b)
9 celled - 7 nucleated
- (c)
3 celled - 3 nucleated
- (d)
2 celled - 2 nucleated
In grass what happens in microspore mother cell for the formation of mature pollen grain
- (a)
One meiotic and two mitotic divisions
- (b)
One meiotic and one mitotic division
- (c)
One meiotic division only
- (d)
One miotic division only
In seed plants, male gametes are transferred to egg cell by
- (a)
Air
- (b)
Water
- (c)
Insects
- (d)
Pollen grains
Which one of the following generates new genetic combinations leading to variation?
- (a)
Sexual reproduction
- (b)
Nucellar polyembryony
- (c)
Vegetative reproduction
- (d)
Parthenogenesis
The fusion of male and female gemetes in course of fertilization is called
- (a)
Syngamy
- (b)
Hologamy
- (c)
Isogamy
- (d)
Anisogamy
Surrogate mother is
- (a)
Mother without lactation
- (b)
Future mother with embryo implanted from another
- (c)
Female carrying several embryos
- (d)
Artificially inseminated female
Identify the hormones that are secreted in large amount prior to ovulation:
A. LH
B. FSH
C. Estrogen
D. Progesterone
- (a)
A only
- (b)
A & B only
- (c)
A, B & C only
- (d)
A, B, C & D
About which day in a normal human menstrual cycle does rapid secretion of LH (Popularly called LH-surge) normally occurs
- (a)
5th day
- (b)
11th day
- (c)
14th day
- (d)
20th day
Which one of the followir.g is the most likely root cause why' menstruation is not taking place in regularly cycling female?
- (a)
Maintenance of the hypertrophical endometrial lining
- (b)
Maintenance of high concentration of sex hormones in the blood stream
- (c)
Retention of well-developed corpus luteum
- (d)
Fertilisation of the ovum
Assisted reproductive technology, IVF involves transfer of
- (a)
Ovum into the fallopin tube
- (b)
Zygote into the fallopin tube
- (c)
Zygote into the uterus
- (d)
Embryo with 16 blastomeres into the fallopian tube
Spirochetes are
- (a)
A class of insects
- (b)
A class of viruses
- (c)
Bacteria
- (d)
Fungi
Which of the following factors is/are responsible for how organism reproduces?
- (a)
Organisms habitat
- (b)
Internal physiology
- (c)
Environmental factors
- (d)
More than one option is correct
Offsprings produced through which of the following process / structures represent clone?
- (a)
Gametic fusion
- (b)
Syngamy
- (c)
Vegetative propagule
- (d)
More than one option is correct
Give the ploidy of following structure in angiospermic plants
Zygote, Endosperm, Ovum
- (a)
n, n, 2n
- (b)
2n, 2n, n
- (c)
2n, 3n, n
- (d)
2n, n, 2n
Which of the following plant provides safe place to insect for laying eggs?
- (a)
Sage plant
- (b)
Amorphophallus
- (c)
Ophrys
- (d)
Mango
From the given categories of bud choose the one which is present on potato tuber?
Nodal bud, Adventitious bud, Axillary bud, Leaf bud, Extra-axillary bud
- (a)
Adventitious, axillary bud
- (b)
Nodal, axillary bud
- (c)
Leaf, extra-axillary bud
- (d)
Nodal, adventitious bud
Select the wrong statement
- (a)
Anisogametes differ either in structure, function or behaviour
- (b)
In Oomycetes female gamete is smaller and motile, while male gamete is larger and non-motile
- (c)
Chlamydomonas exhibits both isogamy and anisogamy and fucus Shows oogamy
- (d)
Isogametes are similar in structure, function and behaviour
Which one of the following plants is monoecious?
- (a)
Papaya
- (b)
Marchantia
- (c)
Pinus
- (d)
ycas