Describe the human genome in terms of genome size, the percentage of the genome that codes for proteins, how much is composed of repetitive sequences, and how many genes it contains. Describe two other features of the human genome.

Video transcript

Hi, everybody. Let's take a look at this practice problem together. A rough estimate of the number of genes in the human genome is 20,000. These genes make up blank of the genome as a whole. Is it a 1%? B 2%? C 75% or D 98%? Now, recall that our genome is three billion base pairs long. And if the number of genes is only 20,000, that means they make up 2% of the genome as a whole. So the correct answers, option B2%,, 1%. This refers to single nucleotide polymorphisms. Recall those are one nucleotide variations and they are found and at least 1% of the population, 75% of the genome is repetitive sequences And 98% of the genome is non coding. So again, the correct answer is option B2%. Alright, everyone. I hope you found this helpful and I'll see you soon for the next practice problem.