Correct Answer: B. EE, EE, Ee, and Ee

Explanation

The labels I, II, III and IV represent the genotypes of the offspring from a cross between two heterozygous parents (Ee). I and II represent the homozygous dominant (EE) and heterozygous (Ee) offspring, respectively, while III and IV represent the heterozygous (Ee) and homozygous recessive (ee) offspring, respectively.

Correct Answer: B. advised to do so by the elders

Correct Answer: D. veterinary/unravelled

Correct Answer: B. inflation

Correct Answer: A. Well differentiated sepals and petals

Correct Answer: D. quarter of the wavelength

Correct Answer: B. Signed alteration on the cheque

Explanation

(a)(i) Graham's law of diffusion states that the rate of diffusion of a gas is inversely proportional to the square root of its density.

Rate a \(\frac{1}{\sqrt{d}}\) or \(\frac{1}{\sqrt{m}}\) where m is the molecular mass and d is the density.

(ii) 1 molecule = X\(_3\). Relative molecular mass of X = 16 x 3 = 48

Vapour density = 1/2 x Relative molecular mass. Vapour density of x = \(\frac{48}{2}\) = 24

(iii) If equal volumes of Y and Z are at the same temperature and pressure and the mass of Y is twice that of 7, molecules of Z will have the greater average velocity. Since the temperature is the same, molecules of Y and Z have the same average kinetic energy. Hence the smaller molecula will have the greater velocity.

(b) Given tha rate curve for the following reaction: MgCO\(_3\) + 2HCI -> MgCl\(_2\) + CO\(_2\) + H\(_2\)O.

(i) The reaction occurred for 12 minutes

(ii) There was a loss in mass because one of the products was a gay (CO\(_2\)) which escaped to the atmosphere.

(iii) The rate was fastest at the beginning of the reaction. The slope of the curve was highest or steepest at the point.

(iv) The slope of the curve can be affected by change in the concentration of HCI, change in temperature, change in particle size/surface area of the MgCO\(_3\)

(c) PCl\(_5\) -> PCl\(_3\) + Cl\(_2\)

\(\Delta\)H = +95 KJmol\(^{-1}\) K\(_{eq}\) = \(\frac{[PCl_3][CU_2]}{[PCl_5]}\)

or K\(_p\) = \(\frac{P^{PCl}_3P^{Cl}_2}{P^{Cl}_5}\)

(i) Increased pressure will shift the equilibrium position to the left

(ii) increased temperature will shift the equilibrium position to the right

(iii) Removal of chlorine will shift the equilibrium position to the right.

Explanation

(a) After God had completed the creation of heaven and earth, there was neither man nor plant or any other living creature to live on earth. There was no rain to water the earth except the dew that came from heaven. God formed man out of the dust of the earth and breathed the breath of life into his nostrils. Man immediately became a living being. God made a garden in Eden and commanded the man to take charge over it.

There were trees ( both the trees of knowledge and evil) which God planted in the garden. Four rivers namely Pishon, Gihon, Tigris and Euphrates which flowed out to wet the garden divided the garden into four. God commanded man to eat of every tree of the garden, but the tree of knowledge of good and evil, man should not eat. If man should eat of the forbidden tree, that means disobedience and the consequence of it would be death. God saw that man was lonely in the garden and He (God ) decided to make a partner for him. He caused a deep sleep to befall man and He (God) took a rib out of him and used it to make woman as a life partner for Adam. The woman was named Eve, for she was made out of man's rib. When Adam woke up and saw her, she said: " This is the bone of my bones and flesh of my flesh; she shall be called woman because she was taken out of a man".

(b) From the story of the second creation in Genesis Chapter two, the sovereignty of God is revealed as follows:

(i) It portrays God as the creator of the heaven and earth.

(ii) God has every control over what He created.

(iii) God saw that it was not good for man to live alone, therefore, He made a helper for him.

(iv) The institution of marriage was established for the continuity of procreation.

Correct Answer: C. a composite fruit