NCERT : BIOLOGY : BIO TECHNOLOGY

QUESTIONS : 25

TIME : 10 MIN

1 / 25

1) It is the vital link that ensure continuity of species. [NCERT PG NO 15]

A) All of these

B) Zygote

C) Embryo

D) Gamete

2 / 25

2) Each Ovary is connected to the pelvic wall and the uterus by: [NCERT PG NO 44 ]

A) Areolar tissue

B) Adipose tissue

C) Ligaments

D) Peritoneum

3 / 25

3) Most critical event in sexual reproduction is [NCERT PG NO 14]

A) Fertilisation

B) Zygote formation

C) Gametogenesis

D) Gamete transfer

4 / 25

4) Anther is generally

A) Monosporangiate

B) Trisporangiate

C) Tetrasporangiate

D) Bisporangiate

5 / 25

5) Which of the following animal is bisexual ?

A) Monkey

B) Cockroach

C) Honey bee

D) Leech

6 / 25

6) Who occupies the centre of each microsporangia when the anther is young [NCERT PG NO 21]

A) Middle layers

B) Connective tissue

C) Sporogenous tissue

D) Tapetum

7 / 25

7) To achieve three celled stage in angiosperm which cell of pollen grain divide to form two male gametes [NCERT PG NO 23]

A) Generative cell

B) Vegetative cell

C) All of the above

D) Microspore mother cell

8 / 25

8) Polar nuclei are situated in the central cell - [NCERT]

A) Below the antipodals

B) Above the egg apparatus

C) Below the egg apparatus

D) All of the above

9 / 25

9) Isogametes of [NCERT PG NO 10, FIG 1.5]

A) Cladophora

B) Fucus

C) Homosapiens

D) Both A & B

10 / 25

10) Sepals also remain attached in plant after fertilisation only in [NCERT PG NO 16]

A) Solanaceae

B) Leguminaceae

C) Fabaceae

D) Liliaceae

11 / 25

11) Wider part of the oviduct is [NCERT PG NO 46]

A) Isthmus

B) Fimbriae

C) Ampulla

D) Infundibulum

12 / 25

12) How many microsporangia are located in the corners of a typical bilobed anther of angiosperm ? [NCERT], [KCET 2021]

A) 1

B) 8

C) 4

D) 2

13 / 25

13) Which constitute the female accessory ducts [NCERT PG NO 45]

A) Oviduct + uterus + cervix

B) Fallopian tube + uterus + vagina

C) Fallopian tube + uterus + cervix + vagina

D) Oviduct + uterus + vagina

14 / 25

14) Which one of the following groups includes sexually transmitted infections caused by virus only ?

A) Hepatitis, Chlamydiasis, Chancroid

B) Genital warts, Hepatitis B, AIDS

C) Syphilis, AIDS, Genital herpes

D) Gonorrhoea, Scabies, Trichomoniasis

15 / 25

15) Select incorrect statements w.r.t anther[NCERT PG NO 21]

A) Microsporangia develop to become pollen sacs

B) Anther is a four sided (tetragonal)

C) Often a longitudinal groove runs widthwise separating the theca

D) Anther is bilobed & tetrathecous

16 / 25

16) Which of the following is non-medicated IUDs [NCERT PG NO 60]

A) Multiload 375

B) Progestasert

C) LNG 20

D) Lippes loop

17 / 25

17) What is not correct with respect to testis in adults [NCERT]

A) Covered by a dense covering

B) Spherical in shape

C) Made up of 250 testicular compartments

D) 4-5 cm in length and width of 2-3 cm

18 / 25

18) In which of the following pollen grains have long ribbon like structure [NCERT PG NO 29]

A) Zostera

B) Vallisneria

C) Water lily

D) Hydrilla

19 / 25

19) The external opening of urethra is called [NCERT PG NO 43]

A) Urethral meatus

B) Urinary tract

C) Urinary bladder

D) Urethral ductis

20 / 25

20) Encysted amoeba divides by [NCERT PG NO 6]

A) Budding

B) Binary fission

C) Multiple fission

D) Both A & C

21 / 25

21) In humans, the sex of the baby is determined:

A) At the time of fertilization and by the father

B) At the time of implantation and by the father

C) At the time of fertilization and by the mother

D) At the time of implantation and by the mother

22 / 25

22) Select incorrect statements regarding water hyacinth. [ NCERT PG NO 8]

A) Grow in running water

B) Known as terror of bengal

C) Most invasive weeds

D) Drains oxygen from water

23 / 25

23) Release of sperm from seminiferous tubule is known as [NCERT PG NO 47]

A) Stimulation

B) Spermiation

C) Spermiogenesis

D) Spermatogenesis

24 / 25

24) Which is the hormonal method of birth control

A) IUD

B) Femidon

C) Vasectomy

D) Pill

25 / 25

25) Difference between ZIFT and IUT lies in the

A) Nature of cells

B) Methodology

C) Number of cells

D) Nature of sperms

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NCERT : BIOLOGY : BIO TECHNOLOGY

TIME : 10 MIN

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