Prions, infectious protein particles, can induce conformational changes in normal proteins, leading to diseases like Creutzfeldt-Jakob disease. While exhibiting self-propagation, prions lack genetic material. Do prions challenge the conventional definition of living organisms, and why?
No, because they are composed of organic molecules.
Yes, because they lack heritable genetic material yet exhibit a form of 'reproduction'.
No, because they interact with living organisms.
Yes, because they cause disease.
Related Questions
Read the following statements:
A. Photoperiod affects reproduction in seasonal breeders, both plants and animals
B. Increase in body mass is considered as reproduction
C. Metabolism is a defining feature of all living organism without exception
D. Self consciousness is a defining property of every living organism
Choose the correct statements
A and B
B and C
A and C
C and D
Process of metabolism leads to
Growth
Development
Functions of living body
All of these
Which of the following are considered as the twin characteristics of growth?
I. Responses to stimuli
II. Increases in mass
III. Increases in the number of individuals
IV. Increases in width
I and II
II and IV
I and III
III and IV
Metabolism can be best defined as
The process in which a chemical is formed inside a body
The process in which a chemical is destroyed inside a body
The sum total all of chemical reactions only occurring in a body
A complex construction process only
Growth in living organism is from
Outside
Inside
Both 1 and 2
None of the above
The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
reproduction
growth and movement
response to stimuli
invitro reactions
Among the following listed features, which is not a unique feature of living organisms?
Adaptation
Reproduction
Growth
Response to stimuli
Mule is a product of
Breeding
Mutation
Hybridization
Interspecific hybridization
Among the following choose the properties shown by the living organism exclusively?
I. growth
II. increase in mass
III. self-replication ability
IV. response to touch stimuli
I and II
II and IV
I and III
III and IV
Which of the following set of organisms reproduce by fragmentation (asexual mode of reproduction)?
Amoeba, fungi and earthworm
Fungi, filamentous algae and protonema of mosses
Hydra, fungi, Amoeba and bacteria
Earthworm, bacteria and fungi
