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OTI365 - NTSE - X Standard
NTSE SAT Biology - Reproduction Important Questions with Answer

NTSE SAT Biology - Reproduction

Exam Duration: 45 Mins Total Questions : 30

1 )

Which one is not associated with gametogenesis?

(a)
Formation of ova
(b)
Formation of spermatid
(c)
Release of ova
(d)
Change of spermatids to spermatozoa

2 )

In 28 days human ovarian cycle, ovulation occurs on

(a)
Day 1
(b)
Day 5
(c)
Day 14
(d)
Day 28

3 )

A wind-pollinated flower will have

(a)
large petals, small anther & produce scent
(b)
small petals, nectar & produce scent
(c)
small petals, large anthers and have a feathery stigma
(d)
large anthers, coloured petals and produce nectar

4 )

Asexual reproduction differ from sexual reproduction in that it does not require

(a)
One parent
(b)
Two parents
(c)
Spores
(d)
Vegetative parts

5 )

Vegetative propagation does not involve

(a)
Root parts
(b)
Stem parts
(c)
Leaf parts
(d)
Flower parts

6 )

Which one of the following is not a method of asexual reproduction?

(a)
Sporulation
(b)
Gametogenesis
(c)
Apomixis
(d)
Parthenogenesis

7 )

The stamens are leaves modified for the production of

(a)
Microspores
(b)
Megaspores
(c)
Ovules
(d)
Seed

8 )

The sepals and petals are

(a)
Reproductive part of flower
(b)
Non-reproductive part of flower
(c)
Part of gametophyte
(d)
Both A & C

9 )

The stigma, the style and the ovary are contained in the

(a)
Petals
(b)
Seed
(c)
Carpel
(d)
Stamen

10 )

Which type of reproduction found in protozoa?

(a)
Binary fission
(b)
Budding
(c)
Spore formation
(d)
Fragmentation

11 )

Which organism cause Kala-azar?

(a)
Plasmodium
(b)
E.coli
(c)
Salmonella
(d)
Leishmania

12 )

Male gonads are called _____________.

(a)
Testes
(b)
Testes
(c)
Ovaries
(d)
Scrotal sacs
(e)
Sperm duct

13 )

The fertilized egg is called ____________

(a)
Ovum
(b)
Blastocyst
(c)
Diploid cell
(d)
Zygote

14 )

The process by which the sperms are produced is known as ______________.

(a)
Ovulation
(b)
Spermatogenesis
(c)
Oogenesis
(d)
Gestation

15 )

The process by which the sperms are released is called ____________.

(a)
Spermatogenefis
(b)
Oogenesis
(c)
Ovulation
(d)
Ejaculation

16 )

The fertilization of human egg by the sperms takes place in __________.

(a)
Ovary
(b)
Oviduct
(c)
Vagina
(d)
Uterus

17 )

Successfully grafted plants bear the flowers and fruits characteristic of the ____________.

(a)
Scion
(b)
Stock
(c)
Either scion or stock
(d)
A mixture of scion and stock

18 )

Pituitary gland is located just below the:

(a)
Brain
(b)
Heart
(c)
Liver
(d)
Kidney

19 )

After ovulation Graffian follicle regresses into

(a)
corpus atresia
(b)
corpus callosum
(c)
corpus luteum
(d)
corpus albicans

20 )

Double fertilization is characteristic of

(a)
angiosperms
(b)
algae
(c)
gymnosperms
(d)
bryophytes

21 )

The polar bodies present inside the embryo sac are

(a)
Haploid
(b)
Diploid
(c)
Unknown
(d)
None of these

22 )

Parts that show chemotropic movement, fertilization and triple fusion are respectively-

(a)
2, 3, 4
(b)
1, 2, 3
(c)
3, 4, 5
(d)
2, 4, 3

23 )

Self pollination is transfer of pollen from anther to the stigma of

(a)
Same flower
(b)
Same or different flower of the same plant
(c)
Same or genetically similar flower of the same or other plant
(d)
Different flowers of the same plant

24 )

Male hormone is:

(a)
Corpus luteum
(b)
Testosterone
(c)
Progesterone
(d)
Gonadotropin

25 )

In flowers, which one of the following conditions will increase chances of self-pollination?

(a)
Pistil is longer than stamens in a flower
(b)
Stamens are just above the stigma of a pistil in a flower.
(c)
In all flowers of the plant only pistil is present
(d)
In all flowers of the plant only stamens are present.

26 )

Sperms travel during an ejeculation from the (i), where they are stored to the (ii), from where they are transported to the ejaculatory duct and then to the (iii) , which carries both reproductive and excretory fluids. A vasectomy is a surgical procedure for contraceptive purposes in which the (iv) is cut and blocked so as to prevent sperms from being present in the semen. Select the correct sequence of terms to complete the above paragraph.