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प्रश्न
Give any six features of the human genome.
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उत्तर
Some of the salient Observations drawn from human genome project are as follows:
- The human genome contains 3164.7 million nucleotide bases.
- The average gene consists of 3000 bases, but sizes vary greatly, with the largest known human gene being dystrophin at 2.4 million bases.
- The total number of genes is estimated at 30,000 much lower than previous estimates of 80,000 to 1,40,000 genes. Almost all (99.9 per cent) nucleotide bases are exactly the same in all people.
- The functions are unknown for over 50 per cent of the discovered genes.
- Less than 2 per cent of the genome codes for proteins.
- Repeated sequences make up a very large portion of the human genome.
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संबंधित प्रश्न
In which of the following haploid cells a whole genome in human being is present?
- sperm
- somatic cell
- mature RBC
- primary spermatocyte
What does abbreviation HGP stand for?
What do 'Y' and 'B' stand for in 'YAC' and 'BAC' used in Human Genome Project (HGP).
Mention their role in the project.
Briefly describe the following:
Bioinformatics
The pairing of homologous chromosomes is call______
(a) crossing over
(b) terminalization
(c) synapsis
(d) bivalent
Write the percentage of the total human genome that codes for proteins and the percentage of discovered genes whose functions are known as observed during HGP.
Expand 'SNPs' identified by scientists in HGP
Give one significant contribution to the following scientists:
Sanger
In which year the Human Genome Project was completed?
The size of genome of Methanococcus is ____________.
The human chromosome with the highest and least number of genes in them are respectively ______.
Which was the last human chromosome to be completely sequenced?
Both husband and wife have normal vision though their fathers were colourblind. The probability of their daughter becoming colourblind is ______.
Of both normal parents, the chance of a male child becoming colourblind are ______.
Human genome consists of approximately ______.
Estimated number of genes in human beings is ______.
The total number of genes in humans is far less (< 25,000) than the previous estimate (upto 1,40,000 gene). Comment.
Write the aims of the human genome project.
