Explanation

Phenotype refers to an individual's observable traits, such as height, eye color and blood type

A person's phenotype is determined by both their genomic makeup (genotype) and environmental factors.

Explanation

When crossing CC (homozygous dominant) with Cc (heterozygous), the possible genotypes of the offspring are:

CC (from C and C)

Cc (from C and c)

The genotype distribution is:

CC: 50% (or 1/2)

Cc: 50% (or 1/2)

So, the proportion of homozygous dominant (CC) offspring is 1/2.

Explanation

Potassium ions play a crucial role in the conduction of nerve impulses.

They help in the repolarization phase of the action potential,

Allowing the nerve cell to reset its membrane potential after the transmission of an impulse

Explanation

Bryophytes are a group of non-vascular plants, which include mosses, liverworts, and hornworts.

They are characterized by their lack of vascular tissue (xylem and phloem) and reproduce via spores instead of seeds.

Explanation

The main artery leaving the left ventricle of the heart is called the aorta.

It carries oxygenated blood from the heart to the rest of the body.

Explanation

Tobacco products are addictive because they contain nicotine.

Nicotine keeps people using tobacco products, even when they want to stop.

Explanation

Alzheimer's disease is a neurological disorder that primarily affects brain function.

It leading to memory loss and cognitive decline.

Explanation

Carbon dioxide (CO₂) is the gas used to carbonate beverages.

It dissolves in the liquid under pressure, creating bubbles and giving the drink its characteristic fizz.

Explanation

Bleach is commonly used as a disinfectant to prevent the spread of illness and disease.

Bleach:

Typically, household bleach contains sodium hypochlorite, which is effective at killing bacteria, viruses, and fungi.

It is widely used in cleaning and disinfecting surfaces, laundry, and water to eliminate harmful microorganisms and reduce the risk of infection.

Explanation

Infected cells produce and release interferons, a type of cytokine.

These proteins interfere with viral replication and activate both innate and adaptive immune defenses.

It helping other cells boost their antiviral responses.