Free Sexual Reproduction In Flowering Plants (Weekly Quiz: 1) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which of the following statement(s) is/are correct about Parthenium (carrot grass)?

(a) It has became ubiquitous in occurrence

(b) Parthenium came into India as a contaminant with imported wheat

(c) It causes pollen allergy

(d) All of the above

Question-2

Endosperm is consumed by developing embryo in the seed of

(a) coconut

(b) pea

(c) castor

(d) maize

Question-3

Embryo sac occurs in

(a) embryo

(b) ovule

(c) axis part of embryo

(d) endosperm.

Question-4

Triple fusion results in ________ while syngamy results in ________.

(a) Endosperm and zygote

(b) Zygote and endosperm

(c) Both form of zygote

(d) Both fern endosperm

Question-5

The pore from which the pollen tube germinates

(a) Germ pore

(b) Seed pore

(c) Intine

(d) Exine

Question-6

During microsporogenesis, meiosis occurs in

(a) microspore mother cells

(b) endothecium

(c) microspore tetrads

(d) pollen grains

Question-7

Rice pollen grains are viable for

(a) 30 mins (approx)

(b) 6.0 mins

(c) 60 mins (approx)

(d) 40 mins

Question-8

Non-albuminous seed is produced in

(a) maize

(b) wheat

(c) castor

(d) pea

Question-9

Perisperm differs from endosperm in

(a) being a diploid tissue

(b) being a haploid tissue

(c) its formation by fusion of secondary nucleus with several sperms

(d) having no reserve food.

Question-10

A dicotyledonous plant bears flowers, but never produces fruits and seeds. The most probable cause for the above situation is

(a) plant is dioecious and bears both pistillate and staminate flowers

(b) plant is dioecious and bears only pistillate flowers

(c) plant is monoecious

(d) plant is dioecious and bears only staminate flowers