Trisomy of the 21st chromosome, also known as Down syndrome, is characterized by features such as: Furrowed tongue (i). Characteristic palm crease (ii). Gynaecomastia (iv) and rudimentary ovaries (iii) are not commonly associated with Down syndrome.
Observe the schematic representation of assisted reproductive technology given below:

Identify the most appropriate technique depicted in the above diagram.
If vector \( \mathbf{a} = 3 \hat{i} + 2 \hat{j} - \hat{k} \) \text{ and } \( \mathbf{b} = \hat{i} - \hat{j} + \hat{k} \), then which of the following is correct?