Molecular evolution is the changes at the molecular level that occur in the genetic material and these changes are known to be the prime cause of evolution. In this, the evolutionary changes at the level of the DNA sequence are determined. Molecular evolution also includes the study of rates at which the sequence of genetic makeup changes, the relative significance of adaptive and neutral changes, and variations in the genome structure.
The techniques employed in obtaining the nucleotide sequences of DNA have drastically improved in the last few decades. The genomes of a number of species including humans, certain viruses have been sequenced.
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
A woman who is heterozygous, Bb, has brown eyes;
Explain why familial breast cancer shows a dominant pattern of inheritance in
How is an F′ factor different from an F factor?
With regard to the timing of conjugation, explain why the recipient
The raw material for evolution is random mutation. Discuss whether or
Why is an antibody used in this experiment? From
Explain the type of speciation (allopatric, parapatric, or sympatric
In fruit flies, curved wings are recessive to straight wings,
A recessive allele in mice results in an unusally long neck.
