Identify the labelled part in the given figure and select the correct option.

 

A

B

(1)

Heterocyst

Mucilaginous sheath

(2)

Mucilaginous sheath  

Heterocyst

(3)

Heterocyst

Capsid

(4)  

Pseudopodia

Mucilaginous sheath

Subtopic:  Kingdom Monera: Blue Green Algae |
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:


Read the following statement regarding bacteria.

I. Bacteria exchnage their genetic matter through conjugation which involve cell to cell contact.

II. Transduction in 'Salmonella is reported by Tatum and Lederberg in 1952.

III. Citrus canker disease is caused by bacteria Xanthomonas citri.

IV. Hans Christian gram's staining method is based on cell wall composition of bacteria.

Choose the correct option with true statements.

(1) I and III

(2) I, III and IV

(3) I, II, and III

(4) II and IV

Subtopic:  Kingdom Monera: Bacterial Cell Structure | Kingdom Monera: Bacterial Recombination |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Heterocysts present in Nostoc is specialised for

(1) fragmentation

(2) nitrogen-fixation

(3) symbiotic relation

(4) food storage

Subtopic:  Kingdom Monera: Blue Green Algae |
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:


Refer to the following figures.

Match the following columns and choose the correct option from the codes given below.

C-I

Column I

Column II

A

I. Euglena

I. kinetoplast

B

II. Paramecium

II. Trichocysts

C

III. Trypanosoma  

III. Astaxanthin

Codes:

 

A

B

C

(1)

3-II    

1-III     

2-I

(2)

1-II

3-I

2-I

(3)

1-III

2-II

3-I

(4)  

3-I

2-II

1-III

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

Difficulty Level:


The given below figure shows a generalised life cycle of a fungus. Identify A, B and C from the given option.

 

A

B

C

(1)

Meiosis  

Fertilisation   

Meiosis

(2)

Meiosis

Mitosis

Fertilisation

(3)

Mitosis

Meiosis

Fertilisation

(4)  

Mitosis

Fertilisation

Meiosis

 

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

Difficulty Level:


Read the following statements regarding archaebacteria.

I. Their cell wall lacks peptidoglycan.

II. They contain membrane bound organelles.

III. These have distinct ribosomal RNA sequence.

IV. Lipid in cell membrane of archaebacteria have different structure than those in all other organisms.

Choose the incorrecct option.

(1) I and II

(2) Only II

(3) Only IV

(4) III and IV

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

Difficulty Level:


A bacterium divides every 35 minutes. If a culture containing 105 cells/mL is grown for 175 minutes, what will be the cell concentration/mL after 175 minutes?

(1) 5 × 105 cells

(2) 35 × 105 cells

(3) 32 × 105 cells

(4) 4.175 × 105 cells

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

Difficulty Level:


Dikaryotisation (n + n) in Agaricus is brought about by

(1) clamp connections

(2) somatogamay between two hyphae of different strains

(3) Both (1) and (2) are correct

(4) basidiospores

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

Difficulty Level:


'Red tide' is caused by

(1) Gonyaulax

(2) Ceratium

(3) Triceratium

(4) All of these

Subtopic:  Kingdom protista: Dinoflagellates |
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:


Which one of the following shows heterothallism?

(1) Rhizopus

(2) Bacterium

(3) Cycas

(4) Ricinus

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

Difficulty Level: