QUESTION 1 1.1 Various options are provided as possible answers to the fothowing questions. Choose the answer and write only the letter ( \( A \) to \( D \) ) next to the question number ( 1.1 .1 to 1.1.4) in the ANSWER BOOK, for example 1.15 D . 1.1.1 Which ONE of the following chromosomes would be found in a normal human cell during metaphase I? A Single thread chromosomes showing variation B Double thread chromosomes showing no variation Double thread chromosomes showing variation Single thread chromosomes showing no variation 1.1.2 The following is a list of some functions that occur during gestation: (i) Diffusion of oxygen from the mother to the foetus (ii) Production of progesterone (iii) Diffusion of excretory wastes from the mother to the Foetus (iv) Diffusion of nutrients from the mother to the foetus Which ONE of the following is a correct combination of the functions the placenta? A (ii) only B (i), (ii) and (iv) only C (i), (iii) and (iv) only D (i), (ii), (iii) and (iv) 1.1.3 The Red kangaroo (Osphranter rufus) reproduces sexually and ha gestation period of 33 days. It then gives birth to an offspring. Which ONE of the following is correct with regard to the Red kangi species? A Internal fertilisation and viviparous B Internal fertilisation and ovoviviparous C External fertilisation and oviparous D External fertilisation and viviparous