The correct answer is 3. A, C and D
Square labels A, C and D are to be marked as "green pods."
According to Mendel’s laws of inheritance, when a plant with dominant trait is crossed with plant with recessive trait, as a result dominant phenotype is appeared in all the F1 offspring. On Selfing F1 offspring, produces F2 offspring with dominant and recessive trait. In the given scenario, pea plant with ‘green pods’ are dominant and pea plant with ‘yellow pods’ is recessive. Therefore, when pea plant with green pod is crossed with pea plant with yellow pods, the F1 offspring (C) produced are with green pods. Thus, parent (A) is with green pods and F2 offspring (D) is with green pods.
Answer:
Option 5, Peracetic acid
Explanation:
Options
- Chlorine
- Copper sulphate
- UV radiation
- Ozone
- Peracetic acid
Solution
Peracetic acid is used as a cleanser and disinfectant in food industry and not in water and wastewater treatment plants.
Chlorine is one of the commonly used disinfectants across the globe and one of the benefits of chlorine is that it also has residual disinfectant properties. UV however stronger than chlorine as disinfectant does not have residual disinfectant properties. Copper sulphate is a disinfectant used to kill fungi and algae and ozone is used to kill bacteria and viruses.
Hence, option 5 is correct
Answer:
A virus attaches to a specific receptor site on the host cell membrane through attachment proteins in the capsid or via glycoproteins embedded in the viral envelope. The specificity of this interaction determines the host—and the cells within the host—that can be infected by a particular virus.
D. It provides buoyancy to a fish.
This air pocket is known as the swim bladder, and also called air bladder. This is a buoyancy organ possessed by most bony fish. The air bladder is located in the body cavity and is derived from an out pocketing of the digestive tube.
I think the scientific field was strengthened by his contribution, because scientists now had a standard and international way of reference to living species as opposed to the layman's names. This brought harmony in the field.
