Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get Atmost three correct answers

#Question id: 763

#1. Molecules and their Interaction Relevant to Biology

Which of the following could be an effect of miRNA regulation?

#Question id: 2655

#2. Cellular Organization

Lac Operon will be turned on when

#Question id: 4593

#11. Evolution and Behavior

Which of Darwin's ideas had the strongest connection to his reading of Malthus's essay on human population growth?

#Question id: 8854

#9. Diversity of Life Forms

Which cells in a sponge are primarily responsible for trapping and removing food particles from circulating water?

#Question id: 10373

#6. System Physiology – Plant

The nodulation (nod) genes are classified as common nod genes or host specific nod genes. Some statements related to such classification are given below;

a) nod A is a common nod gene and nod Q is a host specific gene

b) nod B is a common nod gene and nod C is a host specific gene

c) nod C is a common nod gene and nod H is a host specific gene

d) nod H is a common nod gene and nod P is a host specific gene

Choose the correct answer from the above statements: