Which of the following statements is true?
A)Some genes are found in the mitochondria.
B)Every body cell has 23 chromosomes.
C)Ova and sperm have paired chromosomes,XX for eggs and XY for sperm.
D)The sequences of nucleotides that make up our DNA differ among individuals by about 10%.

Question

Quizplus · Accepted Answer

Some genes are found in the mitochondria. Mitochondria have their own DNA and can replicate independently of the cell nucleus. Some of the genes necessary for mitochondrial function are found in this mitochondrial DNA.

Note: The other statements are false. Body cells have 46 chromosomes (23 pairs), and ova always have only X chromosomes while sperm can carry either X or Y chromosome. The differences in DNA sequences between individuals can vary from less than 0.1% to more than 0.5%.

Which of the Following Statements Is True