According to the current working draft of the human genome,which of the following statements is(are)correct?
I.The human genome contains at least 100,000 genes.
II.One gene can code for several different proteins.
III.Approximately 50% of the genome is "junk" DNA.
IV.At least 200 human genes are identical to genes of bacteria.
A)None of the statements is correct.
B)All of the statements are correct.
C)I,II,and IV are correct.
D)II,III,and IV are correct.
E)I,III,and IV are correct.

Question

Quizplus · Accepted Answer

II - Alternative splicing allows one gene to code for multiple proteins. III - A significant portion of the human genome is non-coding DNA, previously termed "junk" DNA, though this term is becoming outdated as more functions are discovered. IV - Horizontal gene transfer has been identified, showing some human genes are identical to those of bacteria. I is incorrect because the current estimates of the human genome suggest it contains about 20,000 to 25,000 genes, far fewer than 100,000.

According to the Current Working Draft of the Human Genome,which