1. Tardigrade
  2. Question
  3. Biology
  4. A. DNA polymorphism plays important role in evolution and speciation. B. 99.9 % nucleotides bases are exactly same in all people. C. Chromosome 1 has the fewest genes (23) and Y-chromosome has most genes (2968) D. BAC and YAC have been used in Human Genome Project.

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Q. $A$. DNA polymorphism plays important role in evolution and speciation.
$B$. $99.9\%$ nucleotides bases are exactly same in all people.
$C$. Chromosome $1$ has the fewest genes $(23)$ and $Y$-chromosome has most genes ($2968$)
$D$. $BAC$ and $YAC$ have been used in Human Genome Project.

Molecular Basis of Inheritance

Solution:

Correct answer is (c) A, B, D are correct