Complementary DNA is a double-stranded DNA that is formed as a result of a process known as reverse transcription. The template used is messenger RNA and the process is catalyzed by an enzyme which is named reverse transcriptase.
Complementary DNA plays a role where there is a need to clone eukaryotic genes in the prokaryotic cells. This cloning is done in order to express certain proteins. The retroviruses such as HIV-1 have the ability to naturally synthesize this DNA. The mRNA which forms this complementary DNA is devoid of introns (non-coding region of a gene).
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.
