What would be the number of chorosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?

(1) 63

(2) 84

(3) 21

(4) 42

Subtopic:  Events during Sexual reproduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Which one of the following plants is monoecious?

(1) Marchantia

(2) Pinus

(3) Cycas

(4) Papaya

Subtopic:  Sexual Reproduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Flowers are unisexual in

(1) pea

(2) cucumber

(3) china rose

(4) onion

Subtopic:  Sexual Reproduction | Events during Sexual reproduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of 

(1) stock

(2) scion

(3) both stock and scion

(4) neither stock nor scion.

Subtopic:  Artificial |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Which form of reproduction is correctly matched?

(1) Euglena → transverse binary fission

(2) Paramecium → longitudinal binary fission

(3) Amoeba → multiple fission

(4) Plasmodium → binary fission

Subtopic:  Asexual Reproduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Which one of the following methods is commonly used to maintain the genetic traits of a given plant?

(1) By propagating through seed germination

(2) By propagating through vegetative multiplication

(3) By generating hybrids through intergeneric pollination

(4) By treating the seeds with gamma radiations

Subtopic:  Asexual Reproduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Which animal has the longest gestation period?

(1) Shark

(2) Walrus

(3) Elephant

(4) Dog

Subtopic:  Events during Sexual reproduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


The ploidy of bread wheat is 

(1) 4 n

(2) 6 n

(3) 2 n

(4) 8 n

To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Life span of parrot is 

(1) 140 years

(2) 60 years

(3) 80 years

(4) 40 years

Subtopic:  Introduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


No individual is immortal except:

(1) Single celled organisms

(2) Green plants

(3) Sponges

(4) Drones

Subtopic:  Asexual Reproduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level: