List of top Biology Questions

Match the items given in Column I with those in Column U and select the correct option given below:
Column - I Column - II
(a) Proliferative Phase (i) Breakdown of endometrial lining
(b) Secretory Phase (ii) Follicular Phase
(c) Menstruation (iii) Luteal Phase
Calcium is important in skeletal muscle contraction because it
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?
Conjunctive tissue is present between (i) and (ii) in (iii) .
After karyogamy followed by meiosis, spores are produced exogenously in
The Golgi complex participates in
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other ?
Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called
The adsorption of water by hydrophilic compounds like cellulose and pectin in root hair cell wall is called _______.
Which of the following organisms are known as chief producers in the oceans ?
Ciliates differ from all other protozoans in
Which of the following is an occupational respiratory disorder ?
Which of the following animals does not undergo metamorphosis ?
Match the items given in Column I with those in Column II and select the correct option given below :
Column IColumn II
a.Fibrinogeni.Osmotic balance
b.Globulinii.Blood clotting
c.Albuminiii.Defence mechanism
Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system.
Calcium is important in skeletal muscle contraction because it
Which one of these animals is not a homeotherm ?
Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as
Match the items given in Column I with those in Column II and select the correct option given below :
Column IColumn II
a.Proliferative Phasei.Breakdown of endometrial lining
b.Secretory PhaseiiFollicular Phase
c.Menstruationiii.Luteal Phase
According to Hugo de Vries, the mechanism of evolution is
All of the following are part of an operon except
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA ?
A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by
Which of the following gastric cells indirectly help in erythropoiesis ?
Which of the following terms describe human dentition ?