<span>The two basic molds are: Expendable
mold and permanent mold. </span>
Molding is a
process where a rigid frame (mold) is being used to manufacture by shaping liquid
or pliable raw materials. However, molding is synonymous to casting; casting is
a process where a liquid metal is delivered into a mold which contains a hollow
cavity of the intended shape.
Expendable mold casting can be classify as
sand, plastics, plaster which make use of non-reusable or temporary molds while Permanent mold casting is a metal
casting process that use reusable molds.
Answer:
The correct answer is actually B. Has an irregular shape.
Answer:
Normal Gene: AUC AUA GGA AAA UAC
Mutated Gene: AUC ACA GGA AAU UAC
Explanation:
The transcription takes place in the nucleus. This process involve copying of DNA sequence into mRNA (messenger RNA) sequence. mRNA too consists of 4 nucleotides except the fact that in mRNA the thymine (T) is replaced by uracil (U). This involves the following steps:
- Unwinding of DNA
- Binding of RNA polymerase to the unwinded DNA.
- Synthesis of RNA commonly mRNA
- RNA elongation
- Stop codon (UAA, UAG, UGA) initiating termination of synthesis of RNA
