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Choose the correct option for feature of DNA a) Each cell in our body contains an acid, the deoxyribonucleic acid or DNA b) It controls every feature of the body such as our looks, colour of our eyes, our height etc. c) Proteins that build part of our cells are also made of amino acids

Choose the correct option for feature of DNA a) Each cell in our body contains an acid, the deoxyribonucleic acid or DNA b) It controls every feature of the body such as our looks, colour of our eyes, our height etc. c) Proteins that build part of our cells are also made of amino acids Correct Answer Only a and b

Concept:

  • Cell: it is the basic structural, functional and biological unit of all known organisms. It is the smallest unit of life.
  • Study of the cell is called cytology.
  • ​DNA- It stands for Deoxyribonucleic Acid. 
  • It is a molecule that carries biological instructions(such as looks, the colour of our eyes, our height etc) which make each species unique.
  • DNA with its instructions is passed from adult organisms to their offsprings during reproduction.
  • The importance of DNA became clear in 1953 due to the work of James Watson, Francis Crick, Maurice Wilkins and Rosalind Franklin.
  • Researchers refer to DNA found in the cell's nucleus as nuclear DNA.

Additional Information

  • DNA was first observed by Swiss Biochemist Frederich Miescher in the late 1800s.
  • An organisms  complete set of nuclear DNA is called its Genome

Related Questions

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1. The genetic code is degenerate
2. In all amino acids the first two bases are the same in all the codons that represent a particular amino acid
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4. Amino acids with codons ending in U or A also have codons ending in C or G respectively
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P. CD4+ cells make contact with macrophages and stimulate their microbicidal activity.
Q. CD4+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
R. CD8+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
S. CD8+ cells make contact with virus infected cells and kill them.
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