How many nucleotides does a $t-RNA$ molecule typically contain?

Select the incorrect statement from the following.

Which of the following characteristics is not applicable to $tRNA$?

Read the following statements and choose the correct set of statements:
$(a)$ $\text{tRNA}$ has an anticodon loop that has bases complementary to the code.
$(b)$ The $\text{tRNA}$,also called $\text{sRNA}$,was known before the genetic code was postulated.
$(c)$ For termination codon,there is a specific $\text{tRNA}$ that is referred to as terminator $\text{tRNA}$.
$(d)$ The secondary structure of $\text{tRNA}$ has been depicted that looks like an inverted $L$.
Choose the correct answer from the options given below:

The genes are responsible for growth and differentiation in an organism through the regulation of:

$A$ complex of ribosomes attached to a single strand of $RNA$ is known as