16 Questions
What percentage of the human genome codes for proteins?
Less than 2%
How many base pairs does the average human gene consist of?
3,000 base pairs
What is the largest known human gene in terms of base pairs?
Dystrophin (2.4 million base pairs)
What allows human cells to make more proteins than the number of genes in the human genome?
Alternative splicing of mRNA transcripts
Which type of sequences make up about 50% of the human DNA?
Coding repetitive sequences
What percentage of discovered genes have unknown functions?
More than 50%
What is the approximate percentage of the human genome that is the same among individuals of all nationalities and backgrounds?
99.9%
What is the function of introns in the genome?
Help in mRNA modification
Which term describes the process that can yield different protein products from the same gene?
Alternative splicing
What is the classification of genes that are crucial for basic cellular functions?
Housekeeping genes
Which type of repetitive sequences in human DNA can belong to a gene family like globins or actins?
Coding repetitive sequences
What is the approximate percentage of the human genome that codes for proteins?
2%
What allows many human genes to produce more than one protein?
"Alternative splicing"
What is the term for the process that involves chemical modifications of proteins from mRNA transcripts?
"Post-translational regulation"
What is the primary function of exons in a gene?
Code for proteins
What type of genes are responsible for basic cellular functions in an organism?
Housekeeping genes
Learn about the composition of the human genome, including coding and non-coding sequences, repetitive sequences, and pseudogenes. Explore the estimated number of genes, gene sizes, and functions of discovered genes.
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