The frap technique occurs in a series of steps. select every statement that correctly describes a step in the frap procedure. choose one or more:

a. all fluorescent molecules in the cell are irreversibly bleached.

b. the molecule of interest is fluorescently labeled.

c. the relative mobility of the fluorescently labeled molecule is measured.

d. the speed of repair of the fluorescent marker is measured.

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

the answer is mosques. they are an important part of islamic culture.

v=ir = 3x15 =45 v