Advertisements
Advertisements
प्रश्न
The total number of genes in humans is far less (< 25,000) than the previous estimate (upto 1,40,000 gene). Comment.
Advertisements
उत्तर
When scientists began estimating the number of human genes, they began with a very high figure. i.e. more than 100,000. At that time. the technology For studying human genes was not sophisticated enough and the estimate was more qualitative in nature as it was mainly based on assumptions. With gradual progress of technology and knowledge about human genes, the estimated number began to come down. The present knowledge tells us that total number of genes in humans is between 20,000 to 25,000.
APPEARS IN
संबंधित प्रश्न
In which of the following haploid cells a whole genome in human being is present?
- sperm
- somatic cell
- mature RBC
- primary spermatocyte
The pairing of homologous chromosomes is call______
(a) crossing over
(b) terminalization
(c) synapsis
(d) bivalent
Expand the ‘SNPs’ identified by scientists in HGP.
Write any six salient features of the human genome as drawn from the human genome project.
Answer the following question.
Write the basis on which Alfred Sturtevant explained gene mapping.
Answer the following question.
List the two methodologies which were involved in the human genome project. Mention how they were used.
Short Answer Question:
Write a note on Human genome project (HGP).
In which year the Human Genome Project was completed?
In which of the following year the Human Genome Project (HGP) was initiated?
Which was the last human chromosome to be completely sequenced?
A colourblind mother and normal father would have ______.
Of both normal parents, the chance of a male child becoming colourblind are ______.
The polytene chromosomes were discovered for the first time in ______.
The Human Genome Project (HGP) was initiated in ______
How has the sequencing of human genome opened new windows for treatment of various genetic disorders. Discuss amongst your classmates.
Now, sequencing of total genomes getting is getting less expensive day by the day. Soon it may be affordable for a common man to get his genome sequenced. What in your opinion could be the advantage and disadvantage of this development?
Write the aims of the human genome project.
