Which of the is true? a) Certain animals can produce their milk. B) A complete b

Question

Which of the is true? a) Certain animals can produce their milk. B) A complete bacterial genome has been chemically synthesized, assembled, and introduced into a new bacterial cell. c) Transgenic Salmon overexpressing a growth hormone gene grow faster than nontransgenic strains. d) All the above than are true. In the human genome: a) genes often have or more introns b) 95% of the DNA codes for unique proteins c) only 5% is repetitive DNA d) all of the above In bacteria: a) polycistronic transcription units are common b) protein coding regions are densely packed (one gene/1000bp) c) introns are rare or absent d) all of the above Proteomes are analyzed using: a) only DNA sequencing b) 2D gel electrophoresis c) Southern blots d) ASO's Which of the following is true? a) Human genes are all unique and show no similarity to genes from other organisms. b) only 1% of human genes show a high degree of similarity to genes from other organisms. c) Many human genes show a high degree of similarity to genes from other organisms.

Explanation / Answer

45. Proteome is analyzed using:-

2D gel electrophoresis: - In this technique the protein will be separated using the Isoelectric focusing point over the gradient strip in first dimension. In second dimension it will be separated based on the protein size. In this method the protein spots will be analyzed.

DNA sequence cannot be used for proteomic study. DNA sequencing will give information about the base pairs.

So option (b) is correct    

44. In bacteria:-

In bacteria the introns are rare or absent. These are non expressing part of gene. Coding region will be densely packed because of small size of bacteria. Polycistronic transcription units will be common in case of bacteria

So option d is correct

43. In human genome:-

In case of human there are 20 or more introns, 95% of the DNA codes for unique proteins and 5 % are repetitive DNA.

So option (d) is correct because all options are correct.

46. Which of the following is true:-

Human genes show the high degree of similarity with other organism. This similarity is not quantified, whether it is 1% or 2 %.

So option (c) is correct about the human genome.   

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