mRNA plays a crucial role in protein synthesis. It carries the information for synthesis of a particular protein from the DNA to the ribosomes.
In the cell nucleus, this information is copied (transcribed ) from DNA and onto mRNA. mRNA then leaves the nucleus and enters the cytoplasm where it attaches to a ribosome.
Transfer RNA or tRNA begins to read (translate) the information on the attached mRNA and from the pool of free amino acids in the cytoplasm, fetches the amino acids that corresponds to the information, and brings them to the ribosome where they are linked together into a chain, forming the primary structure of protein.
An allergy
An allergy is a disorder caused
by an abnormal reaction to a harmless antigen in the environment. These
diseases include food allergies, hay fever, atopic dermatitis and allergic
asthma. Symptoms may include, a runny nose, shortness of breath, swelling red
eyes, or sneezing. Non-allergic individuals tolerate allergens without problems.
The two main types of allergic reactions are immediate hypersensitivity and delayed
hypersensitivity.
Answer:
d. budding
Explanation:
Budding is a type of asexual reproduction, as are binary division, multiple division, vegetative propagation, and fragmentation. This type of reproduction is observed in some species of animals and plants.
In budding, as the name suggests, sprouts appear on the surface of the organism. These shoots will give rise to a new individual, which may grow on the organism that originated it, forming the colonies, or be released into the environment.
This type of reproduction is common in several plant species, occurring more frequently in angiosperms, and also in some animal species, especially in the cnidarian and porifer group.
At the low temperature, a particular enzyme catalyses a reaction best explains temperature affects the function of this enzyme.
Explanation:
Enzymes are those catalysts which is generally proteins through some RNA molecules as enzymes too. The activation energy of reaction of Enzymes lower is required amount of energy which is needed for occurring the reaction.
Temperature, pH and concentration affect the Enzyme activity. The raising of temperature generally speeds up the reaction. Due to high temperature enzyme to lose its shape and stop working. The part of enzyme where substrate bind is called the active site.
