A given vector `vec(v)` is multiplied by 3 and -3 . Draw diagram to illustrate this .

Describe the following: Bivalent Draw a diagram to illustrate your answer.

Describe the following: Synapsis Draw a diagram to illustrate your answer.

Describe the following: (a) synapsis (b) bivalent (c) chiasmata Draw a diagram to illustrate your answer.

Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.

Draw and explain a series of diagrams that illustrate the stages of meiosis I

For given vector, vec a = 2 hat i j +2 hat k and vec b = - hat i + hat j - hat k , find the unit vector in the direction of the vector vec a + vec b .

Let vec u , vec va n d vec w be such that | vec u|=1,| vec v|=2a n d| vec w|=3. If the projection of vec v along vec u is equal to that of vec w along vec u and vectors vec va n d vec w are perpendicular to each other, then | vec u- vec v+ vec w| equals 2 b. sqrt(7) c. sqrt(14) d. 14

Let vec u , vec va n d vec w be such that | vec u|=1,| vec v|=2a n d| vec w|=3. If the projection of vec v along vec u is equal to that of vec w along vec u and vectors vec va n d vec w are perpendicular to each other, then | vec u- vec v+ vec w| equals 2 b. sqrt(7) c. sqrt(14) d. 14

If the incident ray on a surface is along the unit vector vec v , the reflected ray is along the unit vector vec w and the normal is along the unit vector vec a outwards, express vec w in terms of vec a and vec v

If the incident ray on a surface is along the unit vector vec v , the reflected ray is along the unit vector vec w and the normal is along the unit vector vec a outwards, express vec w in terms of vec a and vec v