#3. ___________ is a molecule that serve as a cell\'s genetic information - a se
ID: 91197 • Letter: #
Question
#3. ___________ is a molecule that serve as a cell's genetic information - a set of instructions that control the activities of the cell.
#9. The nitrogenous base adenine is represented by the letter _______.
#20. If one strand of DNA has the sequence A G T G, then the complementary strand will have the sequence ______.
#27. A mutated form of the gene for ____________ causes the disorder sickle cell anemia.
#32. _______ is the process of using DNA as a blueprint for making RNA.
#33. Portions of the RNA that are cut out and not used to make proteins are called ______.
Explanation / Answer
3 DNA Deoxy RiboNucleic acid
9. Letter A
20 TCAC
27 Haemoglobin
32 transcription
33. Introns
DNA is a polynucleotide that consists of sequence of nitogeous bases which decides sequence of amino acids in a protein manufactured by it. DNA is also called blueprint of information.
9 each nitrogrnous base is represent by capital fist letter of its name e.g. A for Adenine, G for Guanine.
20 If sequence on one strand is AGTG then cinplementart sequnce will be TCAC as it follows complementary base pairing of a purine with pyrimidine. So adenine binds with thymine and Guanine with cytosine and vice versa
27: Sickle cell anaemia is caused because of a single base change in DNA in the gene forming haemoglobin. This change causes change in structure of RBC from biconcave to sickle shape cells.
32 formation of RNA from DNA is called transcription
33. Introns are the segments of RNA which do not code for any protein. These are inactive segments.
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