What is homologous recombination? What is site-directed
recombination?Compare and contrast the two processes. Address their
principles, molecular mechanisms, and physiological
functions.
1. What is homologous recombination? What is site-directed
recombination? Compare and
contrast the two processes. Address their principles, molecular
mechanisms, and physiological functions.
What are the differences between Holliday model recombination
and double-stranded break repair recombination? What experiments
can be conducted to determine which is taking place?
Let G be a group. The center of
G is the set
Z(G) = {g∈G
|gh = hg
∀h∈G}. For
a∈G, the centralizer of
a is the set
C(a)
={g∈G |ga
=ag }
(a)Prove that Z(G) is an
abelian subgroup of G.
(b)Compute the center of D4.
(c)Compute the center of the group G of the shuffles of three
objects x1,x2,x3.
○n: no shuffling occurred
○s12: swap the first and second items
○s13: swap the first and third items
○s23:...
3. CH3OH is synthesized via the following reaction: CO (g) + 2H2
(g) CH3OH (g) . If the reaction occurs at 748 mmHg and 25 °C ,
what volume of H2 gas (in L) is necessary to synthesize 25.8 g
CH3OH? What volume (L) of CO gas is required?
4. Hydrogen gas can be formed by the reaction of methane and
water according to the following equation: CH4 (g) + H2O (g) CO
(g) + 3H2 (g) ....
Let G be a Group. The center of, denoted by Z(G), is defined to
be the set of all elements of G that with every element of G.
Symbolically, we have
Z(G) = {x in G | ax=xa for all a in G}.
(a) Prove that Z(G) is a subgroup of G.
(b) Prove that Z(G) is an Abelian group.