<span>The question is asking "which includes the physical characteristics of an organism
Gene" and the answer is the phenotype. An organism's phenotype is basically its outward appearance and its phisical characteristics. In contrast, the other options, gene, allele and genotype, refer to the genetic make up of an organism - its genotype</span>
Correct answer: A) Extension
Extension is a physical position that occurs when angle between the bones and the limbs of joint increases.
It takes place when there is a contraction of muscles and bones move the joint from a bent to a straight position, it is opposite of flexion, in which the angle between the bones and the limb at the joint decreases.
Example: During straightening of the leg, the angle between the tibia and femur increases, which shows extension has taken place.
A virus is made up of either DNA and or RNA the coat and core is made up of something called a Capsid which is made with protein.
The correct answer for 1st part (
A) Smaller Interfering RNA (siRNA) and 2nd part is mRNA
During the whole procedure of RNA interference the long dsRNA is cut down into smaller fragments (nucleotides) by an enzyme called Dicer. These smaller fragments are called as Smaller Interfering RNA (siRNA) to bind to proteins. This Smaller Interfering RNA forms complex with RISC and helps in degradation of mRNA.
