Which of the following is not true about the sequencing of Neanderthal DNA?
A. Neanderthal mitochondrial DNA shows the same haplotypes as human DNA.
B. Small amounts of Neanderthal DNA are cloned into a library, and the cloned sequences are sequenced at random.
C. Sequences obtained from random clones are compared with existing human genome and chimpanzee genome data bases.
D. Segments derived from Neanderthal DNA can be distinguished from segments derived from bacteria or insects by computerized analysis.
E. The data provides evidence that modern humans and the Neanderthals shared a common ancestor about 700,000 years ago.
A
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Homeotic genes are, in general, in control of
a. X chromosome inactivation. b. formation of major body parts. c. methylation of nucleotides. d. dosage compensation. e. more than one of these
During chemiosmosis, 25)
A) ATP is synthesized when H+ ions move through a protein port provided by ATP synthase. B) energy is generated by coupling exergonic reactions with other exergonic reactions. C) a concentration gradient is generated when large numbers of H+ ions are passively transported from the matrix of the mitochondrion to the mitochondrion's intermembrane space. D) energy is released as H+ ions move freely across mitochondrial membranes. E) H+ ions serve as the final electron acceptor.
Which bond is a peptide bond?
A) A B) B C) C D) D E) E
These are the smallest functional units of matter that form all chemical substances and that cannot be further broken down by ordinary chemical or physical means.
A. protons B. neutrons C. electrons D. atoms E. molecules