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Which of the following statement is not true regarding nucleic acids?

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Important Questions on Molecular Basis of inheritance

EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Which one of the following is not applicable to RNA?
MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
The proportion of nucleotides in a given nucleic acid are adenine: 18%, guanine: 30%, cytosine: 42% and uracil: 10%. Name the nucleic acid and mention the number of strands in it.
EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA

Observe the figure and answer the questions:

Question Image

Identify the parts A and B.

MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Microtubules are the constituents of:
EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA

Identify P and Q in the following figure?

Question Image

MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Fertilization in humans is practically feasible only if:
EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA

Observe the figure and answer the questions:

Question Image

What is the function of 'A'?

EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Chromatophores take part in:
EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Which one of the following processes in E. coli does not directly involve RNA?
MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Give two functions of RNAs.
MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA

Mitochondria and chloroplast are:

(i) Semi - autonomous organelles

(ii) Formed by the division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery

Which one of the following option is correct?

EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Match the following and select the correct answer:
 
  Column I   Column II
(a) Centriole (p) Infoldings in mitochondria
(b) Chlorophyll (q) Thylakoids
(c) Cristae (r) Nucleic acids
(d) Ribozymes (s) Basal body cilia or flagella
EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Root pressure is usually acidic because:
MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Draw a labelled diagram of t-RNA, the adapter molecule.
MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Identify the correct order of organization of genetic material from largest to smallest :
MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Match the columns and identify the correct option.
 
  Column I   Column II
A Thylakoids (i) Disc-shaped sacs in Golgi apparatus
B Cristae (ii) Condensed structure of DNA
C Cisternae (iii) Flat membranous sacs in stroma
D Chromatin (iv) Infoldings in mitochondria
EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
If you suspect major deficiency of antibodies in a person, to which of the following would you like for confirmation evidence?
HARD
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Describe the clover leaf model of tRNA.
MEDIUM
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Write any two chemical differences between DNA and RNA.
EASY
Biology>Molecular Biology>Molecular Basis of inheritance>Structure of RNA
Which of the following statements is correct?

a. rRNA is the most abundant RNA.
b. Ribosomes are composed of approximately 80% rRNA and 20% ribosomal proteins.
c. rRNA is a type of coding RNA.