Question

The hereditary material present in the bacterium Escherichia coli is

A. single stranded DNA
B. deoxyribose sugar
C. double stranded DNA  
D. single stranded RNA
Answer :   double stranded DNA
Solution :
In (E.coli) double stranded DNA is present.
Notes : E. coli is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms. Most types of E. coli are harmless and even help keep your digestive tract healthy. But some strains can cause diarrhea if you eat contaminated food or drink fouled water.

Releted MCQ Question on
Botany >> Biological Classification

Releted Question 1

Pick up the wrong statement

A. Protista have photosynthetic and heterotrophic modes of nutrition
B. Some fungi are edible
C. Nuclear membrane is present in Monera
D. Cell wall is absent in Animalia
Releted Question 2

Five kingdom system of classification suggested by R.H. Whittaker is not based on:

A. Presence or absence of a well defined nucleus
B. Mode of reproduction
C. Mode of nutrition
D. Complexity of body organisation
Releted Question 3

In the five-kingdom system of classification, which single kingdom out of the following can include blue green algae, nitrogen-fixing bacteria and methanogenic archaebacteria?

A. Fungi
B. Plantae
C. Protista
D. Monera
Releted Question 4

In five kingdom system, the main basis of classification is

A. structure of nucleus
B. mode of nutrition
C. structure of cell wall
D. asexual reproduction

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Biological Classification


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