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पुष्पी पादपों में निषेचन के होकर बीज बनता है। फल के भीतर परिपक्व बी
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पुष्पी पादपों में निषेचन के होकर बीज बनता है। फल के भीतर परिपक्व बी जीवों के लिए जनन क्यों अनिवार्य है?

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Question 1
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Direction Read the following and answer the questions from given below) A codon is a trinucleotide sequence of DNA or RNA that corresponds to a specific amino acid. The genetic code describes the relationship between the sequence of DNA bases and in a gene and the corresponding protein sequence that it encodes. The cell reads the sequence of the gene in groups of three bases. There are 64 different codons out of which 61 specify amino acids while the remaining three are used as stop signals. So, each sequence of three codes for an amino acid and proteins are made up of sometimes hundreds of amino acids. So, the code that would make one protein could have hundreds, sometimes even thousands of triplets contained in it. (i) Degeneracy refers to (a) one amino acid has more than one code triplet (b) one amino acid has only one code triplet (c) codons which specify the same amino acids differ only in the third base of the triplet (d) Both (a) and (c) (ii) Starting codon is universal means (a) it is same universally for all organisms (b) two or more codons (c) any variable code is called starting which can start protein synthesis (d) all codons originated from same starting codon (iii) The features of genetic code that allow bacteria to produce human insulin by recombinant DNA technology is (a) genetic code is redundant (b) genetic code is nearly universal (c) genetic code is specific (d) genetic code is not ambiguous (iv) The codons of glycine are (a) CCU, CCC, CCA, CCG (b) CGU, CGC, CGA, CGG (c) GGU, GGC, GGA, GGG (d) ACU, ACC, ACA, ACG (v) Read the sequence of nucleotide in the given segment of RNA and the respective amino acid sequence in the polypeptide chain to answer the question as follows. Following conclusion can be made from this I. The nucleotide sequence of the DNA strand from which this RNA was transcribed is TAC AAU TAC GCA CAA AGA ATT. II. Codes for proline and valine are CCU and , respectively. III. AUG is also known as start codon. IV. UAA does not code any amino acid. (a) I and II are incorrect (b) III and IV are correct (c) I and IV are incorrect (d) I, II and III and IV are correct
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Question Text
पुष्पी पादपों में निषेचन के होकर बीज बनता है। फल के भीतर परिपक्व बी जीवों के लिए जनन क्यों अनिवार्य है?
Updated OnFeb 3, 2023
TopicPlant Physiology
SubjectBiology
ClassClass 12
Answer Type Video solution: 1
Upvotes137
Avg. Video Duration3 min