Draw a schematic representation of the structure of a transcription unit and show the following in it
(i) Direction in which the transcription occurs
(ii) Polarity of the two strands involved
(iii) Template strand
(iv) Terminator gene

(a) Draw a schematic representation of the structure of a transcription unit and show the following in it : (i) Direction in which transcription occurs (ii) Polarity of the two strands involved (iii) Template strand (iv) Terminator gene. (b) Mention the function of promoter gene is transcription.

Draw a diagram of human excretory system and label the following : (i) part in which urine is produced (ii) part which stores the urine (iii) part which connects (i) and (ii) (iv) part from which urine is passed out.

Draw the structures for the following compounds . (i) Ethanoic (ii) Bromopentane (iii) Butanone (iv) Hexanal

(i) Predict which of the following elements will form cation and will form anions ? (i) Na, (ii) Al, (iii) Cl, (iv) O. (ii) Name two elements that are inert in nature.

(a) Draw a diagrammatic sectional view of a mature anatropous ovule and label the following parts in it : (i) that develops into seed coat. (ii) that develops into an embryo after fertilization. (iii) that develops into an endosperm in an albuminous seed. (iv) through which the pollen tube gains entry into the embryo sac. (v) that attaches the ovule to the placenta.

Draw the diagram showing the structure of neuron. Label the following parts : i] The part which has prominent nucleus ii] Dendrite. b] Name the part of a neuron: i] where information is acquired. ii] through which information travels as an electrical impulse.

a) Construct a complete transcription unit with promoter and terminator on the basis of hypothetical template strand given below (b) Write the RNA strand transcribed from the above transcription unit along with its polarity