Question

Answers to this paper must be written on the paper provided separately.
You will not be allowed to write during the first 15 minutes.
This time is to be spent in reading the Question Paper
The time given at the head of this paper is the time allowed doe writing the answers.
Section I is compulsory. Attempt any four questions from Section II.
Section I (40 Marks)
Attempt all
questions from this section
Question 1.
(a) Name the following:
(i) The exchange of chromatid parts between the maternal and the paternal chromatid
a pair of homologous chromosomes during meiosis.
(ii) The number of individuals inhabiting per unit area.
(til) The immunity acquired by providing ready-made antibodies from outside for trea
certain infectious diseases.
(iv) The pollutants that cannot be broken down to simple and harmless products.
(v) The part of the brain that carries impulses from one hemisphere of the cerebellu
the other.​

Answer 1

Answer:

Answers to this paper must be written on the paper provided separately You will not be allowed to write during the first 15 minutes This time is to be spent in reading the question paper The time given at the head of this paper is the time allowed for writing the Attempt all the questions from Section A and any 4 questions from Section All the workings, including rough work, must be clearly shown and must sheet as the rest of the answers. Omission of essential working will result in the loss of marks. The intended marks for questions are given in brackets (). SECTION A-40 Marks (Answer all the questions) QUESTION 1 a) Find the value of a and b if (x - 1) & (x - 2) are factors of x' - ax + b.