Question

Understanding the human genome:

a). Describe the components (major classes) of the human genome and their relative proportions

b). What percent of the human genome is:

-transcribed?

-codes for proteins?

-consists of transposons?

c). A small percentage of transcribed DNA actually is used to produce proteins through translation. What do you think the function of other transcribed material may be?

Answer 1

Ans:

a) The human genome is formed of 23 pairs of chromosome which contains of about total 3 billion deoxyribonucleic acid base pairs.

Out of twenty three pairs of chromosome : twenty two chromosome chromosomes and the X and Y sex-chromosomes.

Somatic cells typically comprises of  one copy of chromosomes 1-22 from both parent, and one x chromosome from the mother, and either an X or y chromosome from the father, for a complete of 46.



b) What % of the human genome is;

transcribed = more than 90% transcribed into RNA.

codes for protein = 1 percent

consists of transposons = 45%

c) The function of other transcribed material include the transcriptional and translational regulation of protein-coding sequences, scaffold attachment regions, origins of DNA replication, centromeres and telomeres.