What does genetic analysis of haplotypes and variants among living and precontact Native Americans indicate?
A) Native Americans underwent a huge decline in genetic diversity after Columbus's arrival in the New World.
B) Native Americans living today appear to be as diverse genetically as their ancient ancestors thousands of years ago.
C) Native Americans have a genetic structure and haplogroups that are quite recent.
D) Native Americans living today appear to be more diverse genetically than their ancient ancestors.
Correct Answer:
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Q16: How does RNA differ from DNA?
A)RNA uses
Q17: Which of the following types of cells
Q18: What do proteins consist of?
A)genes
B)RNA plus mRNA
C)chains
Q19: In mammals,why does the male parent's gamete
Q20: Transcription occurs in the _ and results
Q22: To be homologous,chromosomes must:
A)be genetically identical.
B)carry genetic
Q23: A doctor finds that the mammary glands
Q24: In his experiments with garden peas,Mendel found
Q25: During which process is chromosome number reduced?
A)mitosis
B)recombination
C)translation
D)meiosis
Q26: Which of the following is a characteristic
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