A the middle east 60000 b africa 60000 c the middle

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Chapter 24.rtf

A the Middle East 60000 B Africa 60000 C the Middle East 200000 D Africa 200000 from BIOLOGY BIO230 at University of Toronto

46 .   According to the multiregional hypothesis of human origins , modern H. sapiens evolved by _____ from _____ of H. ergaster .
A ) convergent evolution ; multiple Old World populations
B ) adaptive radiation ; a single Old World population
C ) allopatric speciation ; multiple Old World populations
D ) allopatric speciation ; a single Old World population
E ) peripatric speciation ; a single Old World population
47 .   According to genetic analyses , approximately _____% of the genome of every non- African is derived from Neanderthals .
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48 .   Interbreeding between Neanderthals and modern H. sapiens likely took place in _____ around ___ _ _ years ago , before H. sapiens spread around the world .
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49 .   Sequences in mt DNA and the Y chromosome provide an interesting perspective on the early migratory routes of H. sapiens . Both mt DNA and Y chromosome data are useful because these molecules do not undergo recombination . Which of the following statements also provides support for their utility in estimating origins of various groups within H. sapiens ?
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50 .   If the out - of - Africa hypothesis of human origins is correct , which of the following BEST describes the pattern of hominin migration from Africa ?
A ) H. ergaster migrated 2 million years ago ; H. sapiens migrated 60,000 years ago .
B ) H. sapiens migrated once 2 million years ago and again 60,000 years ago .
C ) H. ergaster migrated once 2 million years ago and again 60,000 years ago .
D ) H. neanderthalensis migrated once 1.3 million years ago and H. sapiens migrated 60,000 years ago .
E ) H. heidelbergensis migrated 2 million years ago and H. sapiens migrated 60,000 years ago .
51 .   Approximately what percentage of non-African human nuclear DNA genomes are Neanderthal derived ?
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52 .   Approximately what percentage of modern human mt DNA is Neanderthal derived ?
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53 .   Comparison of mt DNA sequences revealed that all humans shared a common mt DNA ancestor around 200,000 years ago . What was the predicted date of the common ancestor under the multiregional hypothesis of modern human origins ?
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54 .   Genetic sequence data from mitochondrial and Y chromosome DNA agree that the human family is _____ and it arose _____.
A ) young ; in Africa
B ) young ; in Europe
C ) old ; in Africa
D ) old ; in Europe
E ) old ; in many regions around the world
55 .   Of the taxa listed below , which of the following nonmodern humans was the LAST to go extinct ?
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56 .   Cro- Magnon is the name of the group of the first Neanderthals found in Europe .
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57 .   Mitochondrial DNA studies were used to determine that Homo sapiens evolved in Africa and only later did they become established elsewhere .
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58 .   All evidence suggests that the Neanderthals did not interbreed with our ancestors .
A ) True
B ) False
59 .   Many researchers hypothesize that modern humans have derived from the Homo ergaster populations that spread around the world starting about 2 million years ago . This hypothesis is known as the :
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60 .   When Rebecca Cann decided to conduct research on the evolution of humans , she chose to study mitochondrial DNA . Which of the following explains why she chose this type of DNA ?
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Chapter 23 / Exercise 2
Human Biology
Starr/McMillan
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A)the Middle East; 60,000B)Africa; 60,000C)the Middle East; 200,000D)Africa; 200,000E)the Middle East; 1.4 million
49.Sequences in mtDNA and the Ychromosome provide an interesting perspective on the early migratory routes of H. sapiens. Both mtDNA and Ychromosome data are useful because these molecules do not undergo recombination. Which of the following statements also provides support for their utility in estimating origins of various groups within H. sapiens?
Page 16
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
Human Biology
The document you are viewing contains questions related to this textbook.
Chapter 23 / Exercise 2
Human Biology
Starr/McMillan
Expert Verified
50.If the out-of-Africa hypothesis of human origins is correct, which of the following BEST describes the pattern of hominin migration from Africa?
51.Approximately what percentage of non-African human nuclear DNA genomes are Neanderthal derived?
52.Approximately what percentage of modern human mtDNA is Neanderthal derived?A)0%B)1–4%C)5–10%D)15–20%
53.Comparison of mtDNA sequences revealed that all humans shared a common mtDNA ancestor around 200,000 years ago. What was the predicted date of the common ancestor under the multiregional hypothesis of modern human origins?
54.Genetic sequence data from mitochondrial and Ychromosome DNA agree that the humanfamily is _____ and it arose _____.
Page 17
55.Of the taxa listed below, which of the following nonmodern humans was the LAST to go extinct?
56.Cro-Magnon is the name of the group of the first Neanderthals found in Europe.A)TrueB)False
57.Mitochondrial DNA studies were used to determine that Homo sapiensevolved in Africa and only later did they become established elsewhere.
58.All evidence suggests that the Neanderthals did not interbreed with our ancestors.
59.Many researchers hypothesize that modern humans have derived from the Homo ergasterpopulations that spread around the world starting about 2 million years ago. This hypothesis is known as the:

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