Competent cells are those cells that have the capability of taking up the extracellular DNA that is present in their surrounding environment. This phenomenon of taking up the genetic material is known as transformation. At times, it happens that this genetic material tends to become a part of the cell’s own genome. The process in which the foreign genetic material gets incorporated into that of the host is termed as horizontal gene transfer (HGT).
This HGT is crucial for the eukaryotic cells due to the fact that the DNA has to cross the cell membrane as well as the nuclear membrane. On the contrary, the bacterial cells are easily made competent due to the lack of membrane-bounded nucleus.
How is an F′ factor different from an F factor?
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
In fruit flies, curved wings are recessive to straight wings,
What is an advantage and a disadvantage of this repair system?
Explain the type of speciation (allopatric, parapatric, or sympatric
The raw material for evolution is random mutation. Discuss whether or
With regard to the timing of conjugation, explain why the recipient
A woman who is heterozygous, Bb, has brown eyes;
A recessive allele in mice results in an unusally long neck.
Why is an antibody used in this experiment? From