Gene flow occurs through generations. Gene flow can occur across language barriers in humans. If we have a technique of measuring specific allele frequencies in different populations of the world,can we not predict human migratory patterns in pre-history and history? Do you agree or disagree? Provide an explanation for your answer.
(A) Yes,$I$ agree. Gene flow occurs through generations.
- By studying specific allele frequencies,human migratory patterns in prehistory and history can be predicted.
Studies have used specific genes,chromosomes,and mitochondrial $DNA$ to trace the evolutionary history and migratory patterns of humans. This approach is exemplified by projects such as the $Human$ $Genographic$ $Project$.
- By studying specific allele frequencies,human migratory patterns in prehistory and history can be predicted.
Studies have used specific genes,chromosomes,and mitochondrial $DNA$ to trace the evolutionary history and migratory patterns of humans. This approach is exemplified by projects such as the $Human$ $Genographic$ $Project$.
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List $10$ modern-day animals and,using internet resources,link them to a corresponding ancient fossil. Name both.
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View SolutionMatch the following columns:
List-$I$ List-$II$ $(W)$ Placental mammals and Australian marsupials $(i)$ Adaptive radiation $(X)$ Darwin's finches $(ii)$ Convergent evolution $(Y)$ Giraffe $(iii)$ Divergent evolution $(Z)$ Forelimbs of whale and bat $(iv)$ Lamarckism
| List-$I$ | List-$II$ |
| $(W)$ Placental mammals and Australian marsupials | $(i)$ Adaptive radiation |
| $(X)$ Darwin's finches | $(ii)$ Convergent evolution |
| $(Y)$ Giraffe | $(iii)$ Divergent evolution |
| $(Z)$ Forelimbs of whale and bat | $(iv)$ Lamarckism |
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View SolutionAssertion $A$: Organisms show variations to adapt and utilize the environment to the maximum extent.
Reason $R$: Variations lead to the formation of new species.
Which option is correct for Assertion $A$ and Reason $R$?
Reason $R$: Variations lead to the formation of new species.
Which option is correct for Assertion $A$ and Reason $R$?
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View SolutionMatch the name of the scientist in Column $I$ with the name of the theory in Column $II$.
Column $I$ Column $II$ $1$. August Weismann $a$. Theory of origin of species $2$. Hugo de Vries $b$. Theory of chemical evolution $3$. Charles Darwin $c$. Theory of continuity of germplasm $4$. Oparin and Haldane $d$. Mutation theory
Choose the correct option.
| Column $I$ | Column $II$ |
| $1$. August Weismann | $a$. Theory of origin of species |
| $2$. Hugo de Vries | $b$. Theory of chemical evolution |
| $3$. Charles Darwin | $c$. Theory of continuity of germplasm |
| $4$. Oparin and Haldane | $d$. Mutation theory |
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Match the scientists with their respective contributions: Hugo de Vries,Hardy-Weinberg,and Ernst Haeckel.
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