NCERT : BIOLOGY : BIO TECHNOLOGY

QUESTIONS : 25

TIME : 10 MIN

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

A) At the time of fertilization and by the father

B) At the time of fertilization and by the mother

C) At the time of implantation and by the father

D) At the time of implantation and by the mother

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

A) Genital warts, Hepatitis B, AIDS

B) Hepatitis, Chlamydiasis, Chancroid

C) Gonorrhoea, Scabies, Trichomoniasis

D) Syphilis, AIDS, Genital herpes

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

A) Binary fission

B) Both A & C

C) Multiple fission

D) Budding

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

A) Oviduct + uterus + vagina

B) Oviduct + uterus + cervix

C) Fallopian tube + uterus + vagina

D) Fallopian tube + uterus + cervix + vagina

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

A) Urinary bladder

B) Urethral ductis

C) Urethral meatus

D) Urinary tract

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

A) Drains oxygen from water

B) Most invasive weeds

C) Grow in running water

D) Known as terror of bengal

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

A) All of the above

B) Vegetative cell

C) Microspore mother cell

D) Generative cell

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

A) Ligaments

B) Areolar tissue

C) Peritoneum

D) Adipose tissue

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

A) LNG 20

B) Lippes loop

C) Multiload 375

D) Progestasert

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10) Which of the following animal is bisexual ?

A) Monkey

B) Cockroach

C) Honey bee

D) Leech

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11) Difference between ZIFT and IUT lies in the

A) Number of cells

B) Methodology

C) Nature of cells

D) Nature of sperms

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

A) Microsporangia develop to become pollen sacs

B) Often a longitudinal groove runs widthwise separating the theca

C) Anther is bilobed & tetrathecous

D) Anther is a four sided (tetragonal)

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

A) Solanaceae

B) Fabaceae

C) Leguminaceae

D) Liliaceae

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

A) Zostera

B) Vallisneria

C) Hydrilla

D) Water lily

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15) Which is the hormonal method of birth control

A) Pill

B) Vasectomy

C) Femidon

D) IUD

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

A) Isthmus

B) Infundibulum

C) Fimbriae

D) Ampulla

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

A) Spermiation

B) Spermiogenesis

C) Stimulation

D) Spermatogenesis

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

A) Cladophora

B) Fucus

C) Homosapiens

D) Both A & B

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

A) 1

B) 2

C) 8

D) 4

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

A) Connective tissue

B) Sporogenous tissue

C) Tapetum

D) Middle layers

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

A) Above the egg apparatus

B) All of the above

C) Below the antipodals

D) Below the egg apparatus

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22) Anther is generally

A) Bisporangiate

B) Trisporangiate

C) Monosporangiate

D) Tetrasporangiate

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

A) Gamete

B) All of these

C) Zygote

D) Embryo

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

A) Gamete transfer

B) Gametogenesis

C) Zygote formation

D) Fertilisation

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

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

B) Spherical in shape

C) Covered by a dense covering

D) Made up of 250 testicular compartments

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NCERT : BIOLOGY : BIO TECHNOLOGY

TIME : 10 MIN

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